JVCC LMD4 Aisle/Lane Marking Tape Dispenser is a dispenser used to mark floors with vinyl tapes up to 4 inches wide on a 3 inch diameter core (accommodates rolls up to a maximum outside diameter of 6 inches). The dispenser is accommodating enough to lay down curves (to lay down a completely straight line you would want to trace along another object like a two by four). It is pre-assembled and individually cartoned. Metal construction.