Let children create masterpieces on windows and mirrors with these washable glass crayons. Once finished and suitably admired and documented (maybe with a photo?), children can use their practical life skills to clean the surface with a damp cloth and then polish the glass to a shine again. Perfect for decorating your windows with seasonal pictures such as snowflakes, butterflies or rainbows. Or you might like to try our own personal favourite - getting your friend to stand on the other side of the glass and then tracing around their features for a life-size portrait. Cardboard Box with 10 crayons in bright colours: white, yellow, red, purple, blue, light blue, light green, green, brown & black