Description:E-clips, also known as "e-rings," are used to secure parts onto a shaft. They fit into grooves in the side of the shaft for a snug fit. E-clips come in different types depending on specific application needs.Specifications:Material: Carbon SteelColor: BlackSizes: (ID x OD x Thickness) <1> 1mm ------ 1 x 3 x 0.3mm<2> 1.5mm ------ 1.5 x 4 x 0.4mm<3> 2mm ------ 2 x 5 x 0.4mm<4> 2.5mm ------ 2.5 x 6 x 0.4mm<5> 3mm ------ 3 x 7 x 0.4mm<6> 3.5mm ------ 3.5 x 8 x 0.4mm<7> 4mm ------ 4 x 9 x 0.6mm<8> 4.5mm ------ 4.5 x 9.5 x 0.6mm<9> 5mm ------ 5 x 10 x 0.6mm<10> 6mm -------- 6 x 12 x 1mm<11>7mm ------ 7 x 14 x 1mm<12> 8mm ------ 8 x 15 x 1mm<13> 9mm ------ 9 x 18 x 1mm<14> 10mm ------ 10 x 20 x 1mm<15> 11mm ------ 11 x 22 x 1mm Package Includes:<1> 1mm ------ 40pcs<2> 1.5mm ------ 40pcs<3> 2mm ------ 30pcs<4> 2.5mm ------ 30pcs<5> 3mm ------ 30pcs<6> 3.5mm ------ 25pcs<7> 4mm ------ 25pcs<8> 4.5mm ------ 25pcs<9> 5mm ------ 25pcs<10> 6mm -------- 25pcs<11>7mm ------ 25pcs<12> 8mm ------ 25pcs<13> 9mm ------ 25pcs<14> 10mm ------ 20pcs<15> 11mm ------ 10pcs