Durable material: The non-adhesive patch is made of durable waterproof material, which has good stretchability and is suitable for the twists of the inner tube; the metal file adopts a widened chip design, which is easy to use.Wide application range: Our puncture patch is elastic and elastic, has good adhesion, and is suitable for most bicycle inner tubes and other inflatable items. It is a practical tool for repairing tires, inner tubes, air beds, dinghies, paddling pools, etc. .Pre-adhesive patch: The self-adhesive patch has two different styles, square and round, and they are all pre-adhesive. They are easy to use and can be easily pasted on the inner tube without any glue, making maintenance more convenient and quick.More tips: first use a metal file to roughen the edges of the puncture, wipe the polished surface, directly stick the patch on the puncture and close tightly, wait 5 minutes before inflating the tire, the whole process is very simple To finishMaterial:Foam+plasticcolour:Silver + BlackPackage Contents:12 x rectangular patchs12 x round patchs2 x Iron Tire Levers4 x tire padsOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.