Molotow Chalk Markers is perfect for black boards, glass boards, mirrors and windows. The markers can easily be wiped off with a wet cloth on all non-porous surfaces. Very popular for cafés and restaurants. Filled with water based paint that dries quickly. The markers has a 4-8 mm chisel tip and is available in 8 different colors. We also sell Molotow Chalk Markers in silver and gold.