SAKURA HOBBY CRAFT 3001 3D Crystal Lacquer Color Pens, Primary This 3d crystal color lacquer comes in 6 plastic bottles with pen style applicators It is transparent, acid free, and non-toxic Each contains 0.5 ounces; conforms to astm d 4236 Enhance and beautify any art image Measures 0.35-mm fine tip, easy to use, create 3d effects