Specification:Type: Retaining RingShape: ESurface Finishing: Nickel platingMaterial: 304 stainless steelApplication: Fasteners for mechanical and industrial useSize & Quantity:1.5mm E-clip (12 pcs),2mm E-clip (12 pcs),3mm E-clip (12 pcs),4mm E-clip (12 pcs),5mm E-clip (12 pcs),6mm E-clip (12 pcs),7mm E-clip (12 pcs),8mm E-clip (12 pcs),9mm E-clip (12 pcs),10mm E-clip (12 pcs)Weight: 80g / 2.8oz (approx.) Features: Made of high quality stainless steel material, these e-clips are sturdy and has long service life. There are many different sizes of e-clips that you can use for different purposes and projects. This set includes 120 pieces e-clips so you do not have to worry about running out of e-clips for quite a while. Usually used on axles, or any rotating shaft in a tube, they slip over the shaft and lock into small slots in the tube. Also used to secure the pin that locks a piston on to the engine rod. These e-clips would be great replacement of broken ones for a wide variety of securing tasks around repair shop or home.