The GP-2 includes everything needed to repair a punctured inner tube without messy glue or adhesive. Our self-adhesive patches were engineered in collaboration with 3M(R), and stretch, flex, twist, and turn right along with the tube, so you can continue on to your destination with confidence. Lightly roughen the tube with the included sandpaper, clean, apply patch directly to the puncture, and you're ready to reinstall, reinflate and ride. - Includes: 6 patches, sandpaper, in each case - Lightly roughen tube with the included sandpaper, clean the area, apply patch, and done - Not compatible with tubeless tire bodies or latex inner tubes - Box dimensions: 32 x 32 x 8 mm (1.25" x 1.25" x 0.3") - Box weight: 5 grams (0.18 ounces) - Patch dimensions: 24 x 24 mm (0.94" x 0.94")