1. Package includes: you will get 40 pieces bicycle tire repair kit, including 12 pieces round bicycle tire patches, 12 pieces rectangular bicycle tire patches, 12 pieces square bicycle tire patches and 4 pieces metal rasps; This kit is sufficient for you to apply and replace 2. Repair your tire instantly: the self adhesive bicycle tire patches can be quickly pasted to the puncture part of the bike tire; For the self adhesive function, you don't need any glue to stick; It's very convenient for you to repair the bicycle tire; The patches are lightweight to carry in bag for preventing sudden accidents of the bike 3. Dimension: the round bike tube patch measures 1 inch in diameter; And the size of square bike tube patch is 1 x 1 inch while the dimension of the rectangular bike tube patch is 1.97 x 1.26 inch; Three different shapes and different sizes bike tube patches are sufficient for you to choose; The three shapes are designed for the various sizes of perforations that occur on your bicycle tire 4. Material: the self adhesive bicycle tire patch is made up of PE material, which is enough for applying; The patches will stick to the tire firmly after pasting them on the perforation part Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.