Features: 5 pcs 1/4" Drive Sockets E4, E5, E6, E7, E8, 6 pcs 3/8" Drive Sockets E10, E12, E14, E16, E18, E20. E-Sockets Are a Must for Most Newer Vehicles. Includes Socket Storage Snap on Rail for Easy Storage. Drop Forged, Chrome Vanadium Steel, Heat Treated. Permanent high visibility laser etched size marking on each socket for quick size selection when working. Package Includes: 5 Pcs 1/4" Drive Sockets E4, E5, E6, E7, E8 6 Pcs 3/8" Drive Sockets E10, E12, E14, E16, E18, E20 Specifications: Material: Alloy Steel Size: 1/4" & 3/8" note: Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item.