Letraset ProMarker PROMARKER HENNA Alcohol-based, non-toxic permanent ink made from professional quality dyes for a smooth, streak-free finish Can be applied liberally to paper without damaging the surface Also use on glass, acetate, plastic, metals, textiles, etc Colors can be easily blended for an almost unlimited palette. Twin nibs: fine nib for precise coloring and details and a broad nib for large area color fill. Non-toxic