DescriptionProduct Description[LIGHTWEIGHT & USEFUL]: ROCKBROS Bike Tire Patch is 12g/box, which is lightweight and easy to carry. 40mm diameter is fit for daily repair.[PACKAGE INCLUDES]: Our glueless tube patch kit has 3 lightweight poly cases. Each case has 6 pre-glued self-adhesive tire patches and a sandpaper. Total: 18 glueless bicycle tube patches, 3 sandpapers, 3 cases.[ALWAYS BE PREPARED]: The self adhesive bicycle tire patches can be quickly attach to the puncture part of the bike tire; It’s glueless, which is convenient for you to repair the bike tire; The patches are lightweight to carry in bag for preventing sudden accidents of the bike.[METHODS OF USE]: You just need to polish the perforation part by the sandpaper and clean the polished surface, and then paste the patch to the perforation part firmly.[BUY WITH CONFIDENCE]: ROCKBROS guarantees a secure purchase! If you encounter any issues, we offer a complete refund. Your satisfaction is our highest priority.