These Markal B Paintstik permanent markers can write on any surface

These Markal B Painstik permanent markers writes on lumber, paper, cardboard, metal, oily and greasy surfaces, rough, rusty, dirty and smooth surfaces. Withstands weather, water and temperatures from -50° to +150°F (-46°C to 66°C). Real lead-free paint in stick form; combines long-lasting durability of paint with ease-of-use of a crayon. Dimensions: 4-3/4"L x 11/16"-dia. sold box of 12, one color per box. (Quantity pricing is for same color only).