Forged, Chrome Vanadium steel, 3/8"Sq drive WallDrive® sockets with magnetic plug retention, external hex and polished chrome finish. Set includes thin walled 16mm socket, for where clearance is tight. Features & Benefits: • Forged, Chrome Vanadium steel, 3/8"Sq drive WallDrive® sockets, polished chrome finish. • Magnetic plug retention and external hex. • Sockets: 14, 16, 21mm, 16mm Thin-wall. • Includes thin walled 16mm socket, for where clearance is tight. • Lifetime guarantee*. • Model No. AK65561 Specifications: Model No AK65561 Brand: Sealey Contents: 3/8"Sq Drive 63mm Sockets; 14, 16, 21mm, 16mm Thin Wall