20 pcs 1/2" socket set. Durable, heat-treated CR-V construction. Designed for heavy-duty use. Include: 1 x 1/2" DR ratchet handle, 45T 12 x 1/2" DR sockets: 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 22, 24mm 1 x 1/2" DR spark plug socket: 16mm 1 x 1/2" DR universal joint 1 x 1/2" DR extension bar: 10" (250mm) 1 x 1/2" DR three-way joint 3 x 1/2" DR deep hexagonal sockets: 13, 17, 19mm.