Chrome vanadium steel fully heat treated with satin chrome finish. Wobble Plus design with curved head allows for a 7 degree tilt angle of movement to help in tight, hard to reach areas or can be fixed in a straight position for normal use. Spring loaded ball bearing for secure fitment. Sizes: 3 x 1/2" drive 2", 5", 10". 3 x 3/8" drive 3", 6", 9". 3 x 1/4" drive 2", 4", 6". Supplied in tool tray