Packing List: Rubber puncture repair plugs x 24, tire patch roller x 1, buffing wheel x 1, 4 mm round shank, hex shank twist drill bits; Tire patch roller handle length: 4.92" (12.5 cm), roller dia: 1.49" (38 mm), Buffing wheel dia: 1.49" (38 mm), hexagonal joint dia: 0.43" (11 mm); Rubber puncture repair plugs measuring 0.16 x 1.42 in, 0.24 x 1.89 in, 0.35 x 2.36 in, 8 of each size Upgraded Patch Plugs: Upgraded mushroom plug kit is designed with rubber rods to fill the holes in the tire, preventing water and debris from entering the wound; Round rubber patch adheres completely, allowing the airtight liner to return to normal function and prevent the tire from leaking; Especially suitable for patching small single nail wounds with a crown angle of less than 25° Practical Repair Assistant: Tungsten steel buffing wheel quickly grinds and cleans broken surfaces before repairing tires; tire roller with built-in bearings and gears applies even penetration pressure to remove trapped air bubbles, ensuring adhesion and sealing; The HSS twist drill facilitates grinding of irregular breaks for patch repair Easy to operation: Punch and polish the part of the tyre to be repaired, then evenly apply glue (not included) and puncture with a tyre patch plug, pull outwards the mushroom tyre plug, remove the air trapped in the plug with a press wheel and finally cut off the excess Multiple Applications: Mushroom plug kit is a useful tool for pneumatic tyre repair, widely used in cars, trucks, bikes, scooters, motorbikes, buses, electric cars etc Tire patching kit is a great helper for tire repair, widely used in cars, trucks, bikes, bicycles, scooters, buses, motorbikes, electric cars etc