ITEM NAME:120pcs E-Clip Assortment Retaining Ring Set Radial External Fasteners Hardware Product Description 120pcs E-Clip Assortment Retaining Ring Set Radial External Fasteners Hardware.Size app: M1.5 Outer Dia:0.4cm,Inner Dia:0.12cm,Thick:0.04cm. M2 Outer Dia:0.5cm,Inner Dia:0.17cm,Thick:0.04cm. M3 Outer Dia:0.7cm,Inner Dia:0.23cm,Thick:0.06cm. M4 Outer Dia:0.9cm,Inner Dia:0.35cm,Thick:0.08cm.