Product Description

Irwin STRAIT-LINE lumber crayons have a tough compound provides waterproof marking and long life. Can be used on oily, slick, wet, cold, or dry surfaces. Ideal for wood, concrete, metal, rubber, plastic, cardboard, and ceramic. Wax-based and nontoxic.

Features:

• Ideal for lumber, concrete, cermaics, and metal
• Non-toxic, waterproof
• Can be used on oily, slick, wet, cold, or dry surfaces

Additional Information