A ratcheting ring and open ended spanner combined with the same size at each end Simply turn over to reverse the direction of use when ratcheting 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 Ideal for rapid tightening and loosening of fastenings Chrome vanadium satin finish Designed and manufactured to DIN ISO 1711-1 and DIN 3113A