Marking Crayons

A great way to identify if a ewe or doe has been bred.

Use crayons with our Deluxe Marking Harness, Nylon Breeding Harness or Cross Your Heart Leather Breeding Harness. See accessories tab below.

Shown in a plastic removable case.


505100 Marking Crayon, red, mild In Stock 0.40 $4.00
505110 Marking Crayon, red, hot In Stock 0.40 $4.00
505120 Marking Crayon, red, cold In Stock 0.40 $4.00
505200 Marking Crayon, blue, mild In Stock 0.40 $4.00
505210 Marking Crayon, blue, hot In Stock 0.40 $4.00
505220 Marking Crayon, blue, cold In Stock 0.40 $4.00
505300 Marking Crayon, green, mild In Stock 0.40 $4.00
505310 Marking Crayon, green, hot In Stock 0.40 $4.00
505320 Marking Crayon, green, cold In Stock 0.40 $4.00
505400 Marking Crayon, orange, mild In Stock 0.40 $4.00
505410 Marking Crayon, orange, hot In Stock 0.40 $4.00
505420 Marking Crayon, orange, cold In Stock 0.40 $4.00
505600 Marking Crayon, yellow, mild In Stock 0.40 $4.00
505610 Marking Crayon, yellow, hot In Stock 0.40 $4.00
505620 Marking Crayon, yellow, cold In Stock 0.40 $4.00
505700 Marking Crayon, purple, mild In Stock 0.40 $4.00
505710 Marking Crayon, purple, hot In Stock 0.40 $4.00
505720 Marking Crayon, purple, cold In Stock 0.40 $4.00

Replacing Crayons on a Ram Harness

Crayon Insertion Instructions [176 KB]

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Common Uses

Change colors of crayons every 2 weeks to narrow down when/if an animal was bred or re-bred.


  • Size: Front end 2" wide, back end 2 1/4" wide. 4" long x 1" deep.
  • Contains wax, colourants and inert excipients
  • No dangerous components
  • A metal pin (hidden under the label) and 2 plastic pins are supplied with each crayon.

Crayons made for 3 average daily high temperature ranges:
  • Cold: 25 - 65˚F
  • Mild: 65 - 85˚F
  • Hot: 85 -100˚ F


Plastic case protects crayons during transport.

How to Use

To take off the protective plastic cover:

  1. Hold in one hand so crayon itself is facing you.
  2. Push the crayon (hole in the center) with finger or thumb.
  3. Crayon should pop out.

To put in holder on harness:
  1. Remove cotter pin out of back of crayon by making a slit down middle of sticker.
  2. Place narrow end of crayon (plastic side down) in wide part of holder.
  3. Gently slide up until it can go no further.
  4. Slide cotter pin through holes on side of holder and crayon.
  5. With needle nose pliers, bend end of cotter pin to lock in place. Or use plastic push pins on each side of the crayon to hold it in place.


  • The shade of the marks on wool my not exactly match the crayon color. See examples (on wool) above.
  • Store in a dry, cool place to prevent crayons from melting.
  • Always check the ram every day to see if the crayon needs changing or the harness needs adjusting!
  • Do not allow crayons to freeze.
  • Their wool scourability is disputed. The Kiwi manufacturer say it is. ASI's tests indicates that it isn't.

Trouble Shooting

  • Make sure to get right temperature for your area.
  • Remove protective plastic case before use.

Listed below are recommended optional components or related items. Your particular situation may require alternative recommendations. Please call and talk to our consultants if there are any questions at 800-282-6631.
Item # 501000 - In Stock
Place harness with crayon on ram/billy to verify when or if ewe/doe was attempted to be bred.
Item # 501020 - Back-ordered
Expected on 12/18/2015
A much better marking harness.
Item # 502600 - In Stock
Place harness with crayon on ram/billy to verify when or if ewe/doe was attempted to be bred.
Item # 986000 - In Stock
Provides a detailed schedule based on your lambing date. By Pipestone Sheep School.
Average Rating: 4.5 out of 5
Number of Reviews: 15 customers reviewed this product.

Write a Review

Date: October 29, 2015
Greg B
Would you recommend this product? Yes
Don't show up the best, I would recommend the hot instead of mild or cold.
Crayons made for 3 average daily high temperature ranges. Buy for what the average temperature is in your area. Cold: 25 - 65˚F, Mild: 65 - 85˚F, Hot: 85 -100˚ F -- Premier
Date: October 5, 2015
Jodi F
Would you recommend this product? Yes
Great product but was hoping it would show up better on colored does. Lasts about 3-4 weeks.
Date: September 27, 2015
Melinda S
Would you recommend this product? Yes
Shows up well. Last a reasonable length of time. Over all very satisfied.
Date: September 12, 2015
Would you recommend this product? Yes
Shows up great even on white sheep. Stayed on even through the 3 days of rain. Didn't do as well on the reds and browns but I bet its gona show up on the black sheep great. I wanted a light color the first marking.
Date: August 1, 2015
Julie M
Would you recommend this product? Yes
Like using the crayons, they work well. Only issue is that we have black sheep, and several colors are difficult to see on them, unless real close to them. We have found that red and green are our best options.
Date: December 20, 2014
Stephanie C from Oklahoma
Would you recommend this product? Yes
Our first time for everything! Got it on and it works well. Used purple on our Royal Whites. Shows up well. Rain didn't wash it off.
Date: September 12, 2014
Norman R from Washington
Would you recommend this product? Yes
Works great. I have no trouble knowing when the ewes are bred. The color is bright enough for all my ewes. Dark ones or light colored ones.
Date: December 30, 2012
Alaina M from Ohio
Would you recommend this product? Yes
Used these for the first time and the crayon was very clear on my Boers. I used green on all white rumped gals. Out of 25 does, 23 were marked and of those 23, we had 21 confirmed bred via ultrasound so I was very happy. I only used one crayon and checked each day for new marks or "darker" marks on previously marked does. Next month will tell how accurate my dates are.
Date: August 27, 2012
Jonathon J from KS/Southeastern
Would you recommend this product? Yes
These marking crayons work great. Our only problem is trying to decide which colors at what temp and how to layer them through the breeding season. We start with yellow and change to darker milder colors as the breeding season progresses. I think they are very reasonably priced as well.
Date: December 30, 2011
Michelle C from WA
Would you recommend this product? Yes
Using marking crayons makes my life so much easier, I can't imagine not using them anymore, even for one ewe! :-)

I did have a question though- do you recommend buying "fresh" crayons each year? I noticed that some that I saved from last year didn't seem to work as well, I wondered if they tend to dry out in storage? Also, how "low" can the crayon get before it doesn't work anymore? Should they last all the way down to empty, or should they be replaced once the crayon material gets lower than the plastic sides?
Date: December 24, 2011
B.J. s from Ks
Would you recommend this product? Yes
This chalk fits in the harness better than other brands. I have found that the "hot" does not mark very well. We started using the "mild" even in hot weather. We also found that in a dry lot setting that hay and other stuff will stick to the chalk. We dont have this trouble in a pasture setting.
Date: November 7, 2011
Joseph F from Nebraska
Would you recommend this product? Yes
These are great! They work and it gives me a more accurate date on lambing.
Date: August 24, 2011
Zane D from Idaho
Would you recommend this product? Yes
The crayons are a little awkward to change out, but our ram is gentle, so no big deal. It is very important that you buy the correct temperature rated crayons, however. I purchased the mild crayon and it has been 5 degrees hotter than it is rated and they melted and the ram used up one whole crayon on one ewe. Hope she's bred!
Date: November 8, 2010
Bill V
Would you recommend this product? Yes
Fits the harness quite well, but the cotter pin type attachment, while positive, is a bit fiddly.

Bill Vautrain
Date: September 14, 2010
Julie T
Would you recommend this product? Yes
We have had good luck with this product. They fit into the existing marking harness that we already had which was not a Premier 1 brand.
Date: September 3, 2010
Troy L
Would you recommend this product? No
Two of our mature rams lost the crayons the first night. The little plastic pegs supplied to attach the crayons were really cheap. Also the crayons that did stay attached were used very fast and seemed very soft, they were smashed flat under the weight of the rams.
Rapid crayon use and soft crayons occur if the ambient temperatures are higher than the type (hot, mild, cold) of crayon attached. For example a "cold" crayon is much softer at high temperatures than a "hot" crayon.

We noted the lost crayons due to the pegs. If this occurs switch to using the metal pin provided with each crayon. They don't break (obviously). -- Premier
Date: March 26, 2010
Julie M
Would you recommend this product? Yes
The crayons mark really well when first applied. But it can easily get covered with straw/compost and worn down when ram lays down. Efficient marking and crayon longevity are then reduced.