Writes on glass, steel, aluminum, plastic, wood, rubber, pallet racking, virtually any surface! Qty: 12 Pens Dress up the windshield of your front line with sales messages or use in the service/body shop department for marking repair needs. Doesn't damage the paint of the vehicle! Improves in-shop communications by assigning different colors to each department or individual to identify what has been or needs to be done. Productivity increases as there is no wasted time finding files or instructions, therefore increasing your profit margins. Facilitates seamless communication in your shop. Warning: This product can expose you to chemicals which is [are] known to the State of California to cause cancer and birth defects or other reproductive harm.