Glass Chalk - The Original Patented Indoor/Outdoor Temporary Paint Marker for Auto Windows and Glass Surfaces, Sponge-Tip, Assorted Colors, Neon Orange and Neon Green, 2 Count Glass chalk original are the original indoor and outdoor temporary paint sponge markers, proudly made in the u.S.A Bright, neon & metallic colors: Glass chalk original uses only high quality water-based concentrated liquid chalk Great for temporary or permanent results: Express yourself on any non-porous surface like glass, windows, mirrors, metal Diy ideas & videos: Our brand not only offers a patent product but also dedicates to inspire new creations through our website in our diy page Easy to use, easy to clean: Glass chalk original is made easy to use by kids and adults