LARGE TUBELESS TYRE PUNCTURE REPAIR RUBBER NAILS (PACK OF 10) 3-5mm PUNCTURE REPAIRS

Small size: 5.3 x 11.7mm (it can repair 0.1-3mm tire breaks)

Large size: 6.8 x 12.7mm (It can repair 3-5 mm tire breaks),

Note that the inside of the rubber nail is a metal screw, and the outside is wrapped with a rubber coat, so as to avoid the friction loss caused by the direct contact between the tire and the metal