Brady X-120-499 Labxpert 1" Width with 0.375" Diameter vial top label Width x 0.5" Height, B-499 Nylon Cloth, Matte Finish Black on White Label (300 per Cartridge) Printable, nylon cloth labels for labxpert printer Used for wiremarking and general labeling applications B-499 material is UL recognized with its respective ribbon