Reliable Material: Our tire repair nails are made of premium rubber body and metal head, sturdy and durable, not easy to break. They are resistant to high temperature and abrasion, and can firmly fix your tires without damaging them. Reliable and long service life. You can use them with confidence. Good Sealing Effect: With small and fine screw pointed tips, it is easier to screw the tire repair nails into the tire. The threads on the screw can effectively increase the sealing effect.