These POSCA Paint Markers have a non-toxic, water-based formula that produces dense, vibrant colours on a variety of surfaces. The markers are permanent on most porous surfaces and are removable when used on glass. -This marker has an extra-fine, calibre nib that measures 0.7 mm. -These markers can be used on a variety of surfaces like glass, metal, wood, cardboard, and paper. -The ink is non-toxic and has a water-based formula. -With the comfortable, round barrel, they are easy to use for long periods. -The colours included in this pack are white, sunshine yellow, apricot, light pink, lavender, light blue, glacier blue, and aqua green.