Universal Invisible Tape, 3/4 x 1000 inch, 1-inch Core, Clear, 12/Pack. Acrylic office tape becomes invisible upon contact with a flat, smooth surface. Reliable adhesive keeps tape in place. Matte finish accepts ballpoint pen and pencil. Fits most standard tape dispensers. Tape Type: Transparent Office; Size: 3/4 inch wide x 1000 inch length; Core Size: 1 inch; Color: Clear.