Whiteboard marker can be dry-wiped from whiteboards and surfaces like glass and porcelain without leaving a trace. Fast-drying, low odour. DRY SAFE - can be left uncapped for days without drying up. Automatic pressure equalization prevents from leaking on board aircraft. Content, 1 of each: 351-4, -2, -20, -6, -30, -3, -53, -5, -7, -9