- Bolder, brighter marks for increased visibility
- Clay-based, extruded formula gives the writing feel high volume users prefer
- Extra long write-out gives better economy
- Superior performance on wet wood
- A stronger, heavier formula for reduced breakage and chipping
- Superior marking in all temperature and weather conditions eliminates the need for a soft crayon
![Markal Pro-Ex Lumber Crayons, 1/2 in X 4 5/8 in, White, 12/BOX, #80380 Markal Pro-Ex Lumber Crayons, 1/2 in X 4 5/8 in, White, 12/BOX, #80380](https://cdn11.bigcommerce.com/s-gdy1ehz/images/stencil/500x659/products/240482/345185/434-80380__59862.1594724166.jpg?c=2)