This Teng Multi Ratchet Ring Spanner Set is a 3-piece 12-point flip reverse ratcheting ring spanner set featuring two sizes at each end covering 12 sizes altogether from 8mm to 19mm.The spanners feature a satin finish and are supplied in a handy storage wallet.Spanner sizes:8 x 9mm + 10 x 11mm.12 x 13mm + 14 x 15mm.16 x 17mm + 18 x 19mm.