1,2-R-ring clips 2,Material:plastic,metal 3,Color:nickel-plated, golden-plated 4, ... CODE8305100000 Materialmetal Ring shapeR ,D, Q,S,SD, Ring numbers 2.3.4.5.6.7.8.9.10.12.16 ... .17.20.26.30 Item ModelPR133-2-60/36 Over length133mm Base Width36mm Ring Diameter60mm Surface treatmentNickel ... our factory, please feel feel to contact with me. PR123-2-30/20 Metal clip