Description -MO, durable and convenient to use. The socket design increases the contacting surface between sockets and bolts for less resistance on the bolt surface. Fine workmanship ensures its durability and practicality. Suitable for electric, pneumatic wrench and so on. Features - Color: Black. - Material: -MO. - Size(20mm): 3.00X2.80X2.80cm/ 1.18X1.10X1.10inch. - Size(21mm): 3.00X3.00X2.10cm/ 1.18X1.18X0.83inch. - Size(22mm): 3.10X3.00X2.10cm/ 1.22X1.18X0.83inch. - Size(24mm): 3.20X3.00X2.10cm/ 1.26X1.18X0.83inch. - Made of high grade -MO, hard and wear-resistant, durable for longer service life. - Use this socket sleeve to better help your work and prevent unnecessary disassembly. - Sturdy and durable, high hardness, strong toughness, non-slip, can serve you long. - The installation is simple and convenient, with a wide range of , durable and not easy to be damaged. - Being light weight and in proper size, it is a nice repairing tool for you. Made of high grade -MO, hard and wear-resistant, durable for longer service life. Use this socket sleeve to better help your work and prevent unnecessary disassembly. Sturdy and durable, high hardness, strong toughness, non-slip, can serve you long. The installation is simple and convenient, with a wide range of , durable and not easy to be damaged. Being light weight and in proper size, it is a nice repairing tool for you.