Add bright rich colors to your artwork with the Surebonder® Cray-Pen wax pucks. These crayon wax pucks come in an assortment of 6 primary colors including red, blue, purple, yellow, orange, and green. Simply heat your cray-pen, dip it in these color wax pucks and paint to your heart's content. You can color different surfaces like glass, canvas, wood, plastic, and more. These colors dry instantly, so you can complete your DIY project quickly.