A ratcheting ring and open ended spanner with the same size at each end TengTools hip grip design on the ring end for contact with the flat side of the fastening 72 teeth ratchet spanners giving a 5? increment between clicks Reversible ratchet mechanism Ideal for rapid tightening and loosening of fastenings Chrome vanadium satin finish Designed and manufactured to DIN ISO 1711-1 and DIN 3113A