1.8 different color available,vivid color 2.Can last 3-6 months 3.Easy write,easy dry 4.No harm to skin 5.SGS report 2013 new products highlight led writing board artmaker pen use with our innovative led writing board, you can design a vivid advertisment by yourself, the high light make the design alive and vivid.Features1.Water-based,dry-wipe prescription.2.easy to wipe off with wiper,tissure ...