Professional tool for commercial or occasional use -1/4" drive wobble extension bar set -Wobble drive allows certain angle of tilt to help to get into tight awkward places -By pushing the sockets onto the extension bar further this will also allow the extension bas to be non-wobble and rigid instead -Manufactured from chrome vanadium steel for strength and durability -1/4" drive extension bars so will fit any 1/4" drive ratchet / sockets -Heat treated highly mirror polished finish with knurled rings for added grip when using in slippery oily conditions SET INCLUDES THE FOLLOWING - 1/4" Extension bar - 32mm - 1/4" Extension bar - 50mm - 1/4" Extension bar - 100mm - 1/4" Extension bar - 150mm - 1/4" Extension bar - 200mm - 1/4" Extension bar - 275mm -Comes in a plastic tray for easy storage and transportation