Details Anti-Release Steel Ball: It effectively prevents the socket from falling off during use, improving the safety and stability of work. Suitable Slots: This design prevents the tools from falling off or being knocked down during transport. Safety Buckles: They prevent case opening accidentally at the job site. Application This product can be used for automotive or other repairs, modifications, etc. Specifications Material: 45 High Carbon Steel Process: Black Phosphating, Heat Treatment Color: Black, Red Style: Modern Number of Pieces: 26 Type: Drive Impact Sockets Drive Size: 3/4 "& 1" 17 PCS 3/4" Socket: 21mm/0.83in, 22mm/0.87in, 23mm/0.91in, 24mm/0.94in, 26mm/1.02in, 27mm/1.06in 28mm/1.1in, 29mm/1.14in, 30mm/1.18in, 31mm/1.22in, 32mm/1.26in, 34mm/1.34in 36mm/1.42in, 38mm/1.5in, 41 mm/1.61in, 46 mm/1.81in, 50 mm/1.97in 3 PCS 1"Socket: 55mm/2.17in, 60mm/2.36in, 65mm/2.56in Package Size: 55*32*12cm/21.65*12.6*4.72in Gross Weight: 20kg/44.09 lbs Net Weight: 19kg/41.89 lbs Package Included 20*Sockets 1* Ratchet Spanner 1* Dash Adapter 1* Extension Bar 1* Sliding Bar 1* Socket Spanner 1* L-Shaped Bar 1* Case Notes 1.Please check the product size before ordering to make sure it fits your needs. 2.If you receive the sockets with protective oil, please be assured because it is a new set of sockets. This is a rust-inhibiting oil used to protect the product. Please use it carefully. Due to shipping issues, the surface of the product may air-dry, so you can apply rust-preventive oil to keep it shiny.