Premier-Black-Wobble-Rigid-Extension-Bar-Set-1-4-Sealey-AK7693-Heat-treated-and-hardened-Chrome-Vanadium-steel-shafts-fully-polished-black-chrome-finish-with-machined-and-lacquered-heads-Wobble-feature-allows-sockets-to-be-driven-with-shaft-offset-of-up-to-10-Spring-ball-socket-retainers-Deep-knurling-on-shafts-allows-for-extra-grip-Supplied-in-EVA-foam-storage-tray-Sealey-AK7693-Premier-Black-Wobble-Rigid-Extension-Bar-Set-1-4-