Scotch® Sure Start Packaging Tape features technology that allows a smooth easy unwind. Seal your boxes with less noise when in a crowded office or a quiet cubicle setting. Sure Start means the tape unwinds smoothly from start to finish with no slivering or splitting for frustration-free taping. The tape s strong adhesive will keep even your heavy boxes sealed. For added utility you can apply the crystal clear tape over shipping labels for greater shipping security. Refill Rolls—For standard 3 core dispensers. Core Size: 3 ; Dispenser Included: No; Adhesive Material: Hot Melt Synthetic Rubber; Backing Material: Plastic.