PRO BIKE TOOL Puncture Repair Kit with Tire Levers, Patch Kit & Waterproof Bag is Lightly roughen tube with the included metal rasp, clean, apply patch, and you’re ready to GO! Self-adhesive instant repair patches are ideal for riders who want to keep their weight and pack size down whilst being ready for anything during their ride. We include 2 packs, with each pack including 12 round patches 0.79 inches (25mm) diameter. Plus a square metal rasp (scuffer) per box. Yep that’s 24 patches in total, which is awesome value! Our tie patches are highly pliable and coated with custom-developed, super aggressive adhesive. Please note: as the patches are pre glued they will expire in 12 months once the package is opened. Pre glued patches are not designed to be a permanent solution to seal a puncture hole - for a long term permanent solution, please use our 14 PC Bicycle Inner Tube Patch Kit which which uses Rubber Cement for a permanent bond. Each puncture repare kit is stored in an ultra compact polypropylene case - 1.97 inches (5cm) x 2.16 inches (5.5cm). Easy to fit in a saddle bag or jersey pocket.