This Draper Expert socket set features twelve-point sockets made from hardened and tempered chrome vanadium steel with a polished finish. Each socket includes a knurled ring for enhanced grip. The set comes with a 72-tooth reversible ratchet and accessories, all housed in a durable plastic storage case with a soft-grip handle. The set includes 23 sockets ranging from 8mm to 32mm, three spark plug sockets (10mm, 12mm, 14mm), a 72-tooth reversible ratchet with a quick-release button, a 125mm wobble extension bar, a sliding T-bar, and a universal joint.