Description This replacement wrench ringsetis made of selected material, which can withstand long-lasting use. Features the iron and rubber material, which has high durability, not easy to deform. Fine workmanship, ensures practicality. This replacement wrench ring setwill allow your wrenchto work smoother. Features -Color:As Shown -Material:Iron, rubber -Size:1.34X1.34X0.20cm/0.53X0.53X0.08in -Size:1.10X1.10X0.20cm/0.43X0.43X0.08in - Rubber ring is used for supporting the retaining ring, rubber ring and retainer ring will worn over usages. - Easy to use, install the O-ring first, then install the impact wrench sleeve retaining ring, and clamp it to the appropriate size with pliers. - This wrench ring kit fits for most electric and air wrenches with 12.5mm square drive, better satisfy your demands. - Scientific design, high strength, high hardness, and excellent durability, the wrench rubber rings will easily meet your needs. - Exquisite workmanship, reasonable structure, professional and practical, impact friction rings can bring you convenience. Packing list8 x retaining rings8 x rubber rings