1、Made of 304 stainless steel, which is resistant to acid and alkali, corrosion and rust. A typical representative of austenitic steel, it will have weak magnetic field after photosphere, HRC<26. 2、The surface is polished without burrs, glossy and flat. Wide range of uses ,can be used for medical equipment, chemical industry, aerospace and other products. 3、With G1000 accuracy, own strong hardness, the 304 stainless steel ball is wear resistance, the finest quality stainless steel produced in accordance with the highest industry standards. 4、Can be used for perfume bottles, sprayers, valves, nail polish, motors, switches, electric irons, washing machines, refrigerators, air conditioners, medicinal materials, auto parts, instruments, baby bottles, electronic components, jewelry polishing 5、Stainless steel balls offer the accurate geometry and fine surface finish that makes them especially useful in valve pumps, nail polish and spray paint bottles for agitation, sprinkling systems 1 Bag 304 Stainless Steel Ball (0.5kg)  Item Type: 304 Stainless Steel BallMaterial: 304 stainless steelSurface: Polishing processAccuracy: G1000Particle Size: Approx. 2mm/ 0.08in; 3mm/ 0.12in; 4mm/ 0.16in; 5mm/ 0.2in; 6mm/  0.24inTotal Weight: Approx. 0.5KG / 1.1 lbQuantity: The steel balls with small particle size are also 0.5kg /  1.1 lb in weight, and there will be an error of 1-2 in the quantity.(Unit Conversion: 1mm= 0.03937inch)Total weight (lb) 1.1  1. 11.1  1. 11.1Particle size(in)      0.08in      0.12in      0.16in    0.2in      0.24in Quantity(pcs)     10323      4540      1960     980     567Uses: Can be used in medical equipment, chemical industry, aerospace, plastic hardware: perfume bottles, sprayers, valves, nail polish, motors, switches, electric irons, washing machines, refrigerators, air conditioners, medicinal materials, auto parts, instruments, baby bottles, electronic components, Jewelry polishing and other products.Note: 304 stainless steel balls are not recommended to be used on bearings, bearing steel is generally used on bearings!