These yellow lumber crayons can write on wood, concrete, glass and more making them ideal for emergency and disaster preparedness kits. Writes on wet or dry surfaces. Having the ability to leave important notes in a disaster can help rescuers find you or let them know you are OK or where you went. These handy marking crayons are also useful when hunting, hiking and backpacking. Use to leave trail marks on trees and rocks to find you way back.
- Overall dimensions: 4.25 " x 1/2"
- Hex shaped.
- Color: Yellow