Tudomro24 Pcs Lumber Crayons Bulk Wax Tire Marker Drawing Crayons for Marking on Lumber Metal Wood Carton Ceramics Glass Plastic, 3.94 x 0.55 Inch (Yellow)

Use in salvage yard marking on equipment last long to B4 sun fade it out or rain snow wash off

What I expected, came timely

Very brittle and do not withstand any type of heat. Any type of pressure while writing with them and they crumble. Crayons were sat on top of a cardboard box on our truck and they all melted into a pile. It was only 60 degreed F outside. Do not recommend buying these, spend the extra couple dollars and purchase the Dixon lumber crayons.

These work alright on most surfaces I tryed like aluminum wood plastic rubber. I didn't try glass and it does work on steel but not like on other surfaces.

I was hoping for this crayon to be more like a hard lumber crayon, and these are much softer than Crayola brand. If you rub too hard, the black will flake off. My classes use a lot of black crayons and I'm not crazy about these.

Doesn’t write smooth as compared to others I have tried. Not recommended

Very soft, we went through the entire pack in no time using on timer, dixon the only way to go. Disappointing

They work but every single one breaks as you use them. Half crayon the whole timeGuess it's a 2 for 1 if you like half sized lumber crayons.