23 Piece, 1/2" Drive Deep Socket Set, Lockable Stacking Cases, Durable Transparent Lid, 72 Tooth Quick Release Ratchet, Exceeds ANSI Specifications, Removable Internal Tray, Knurled Beauty Rings For Hand Tightening Applications, Includes: 1/2" Drive 72 Tooth Quick Release Ratchet, 1/2" Drive 6-Point SAE Sockets: 7/16", 1/2", 9/16", 5/8", 11/16", 3/4", 13/16", 7/8", 15/16" & 1", 1/2", Drive 6-Point MM Sockets: 13", 14", 15", 16", 17", 18", 19", 21", 22" & 24", 1/2" Drive 5" Extension.