Tube Tape is an innovative car jamb tape that eliminates the hassles of foam tape and is twice as fast as back taping. It is used to seal car doors, hoods, gas caps and trunks like foam tape, but it can be used anywhere on a vehicle to deliver a soft edge. Unlike foam tape, Tube Tape is sticky on all sides, so it will not leave a hard edge. Because the tubes are "sticky all over" they are much faster and easier to apply than foam tape. Tube Tape does not stretch, so it will not fall off at any time in the painting or baking process. Plus, it is made from premium grade automotive masking tape, so it will not leave an adhesive residue. Original Tube Tape has a 3/8" diameter and a 1/4" diameter removable foam core. Take out the foam core to mask tight areas, like gas caps. Double up the tape to fill exceptionally large gaps. There are (40) tubes in a box, and each tube is 4 feet long.