Less wear and damage to fastener with the Dynamic Drive sockets. Easier access with the thin compact head on combi wrench. Comfortable grip of spanners from the U shaped handle. Quick socket release button on ratchet. Contains: 21 pcs 1/2" 6-pt Sockets Dynamic Drive / 2 pcs 1/2"Extension bars 5" & 10" / 1 pce 1/2" Universal joint / 1 pce 1/2" T-adapter / 1 pce 1/2" Breaker bar with two component handle 10" with flexible 1/2 square / 1 pce 1/2" Ratchet with two component handle, 60 teeth / 13 pcs Combination spanners on practical removable tool-rack / Removable three section plastic box with lid.