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> 25mm ------ 23.8 x 28 x 1.1mm<2> 28mm ------ 25.6 x 31.4 x 1.1mm<3> 30mm ------ 27.4 x 33 x 1.1mm<4> 32mm ------ 29.4 x 35.3 x 1.1mm<5> 34mm ------ 31.2 x 37 x 1.4mm<6> 35mm ------ 32.8 x 39 x 1.4mm<7> 38mm ------ 35.2 x 41.2 x 1.4mm<8> 40mm ------ 36.2 x 42.8 x 1.4mm<9> 42mm ------ 38.5 x 45.5 x 1.4mm<10> 45mm -------41.5 x 48 x 1.4mm<11> 47mm ------ 43.5 x 51.4 x 1.4mm Package Includes:<1> 25mm ------ 8pcs<2> 28mm ------ 8pcs<3> 30mm ------ 8pcs<4> 32mm ------ 8pcs<5> 34mm ------ 8pcs<6> 35mm ------ 8pcs<7> 38mm ------ 8pcs<8> 40mm ------ 8pcs<9> 42mm ------ 8pcs<10> 45mm -------8pcs<11> 47mm ------ 8pcs