Feature: Steel body & chrome vanadium gear flex-head double ended combination ratchet spanner set – Open ended and flex-ratchet ring heads 180° pivoting flex head with 5° gearing for reducing fatigue and easy control Precision-machined 12-Point box end and 72 teeth ratchet mechanism Corrosion-resistant mirror chrome finish and 4 layer of anti-rust process Comes in a tool bag for storage and easy transportation .