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 RollsFor standard 3" core dispensers. Core Size: 3"; Dispenser Included: No; Adhesive Material: Hot Melt Synthetic Rubber; Backing Material: Plastic.