Name: Standard 304 stainless steel ball, solid precision small steel ball, round ball 1 2 3 4 5 6 7 8mm9 10mm. Color: silver, bright silver. Hardness: Brinell hardness =178HB; Rockwell hardness =90HRB=26HRC; Vickers hardness =200HV. Uses: It can be used in medical equipment, chemical industry, aviation, aerospace, plastic hardware, perfume bottles, sprayers, valves, motors, switches, washing machines, refrigerators, air conditioners, auto parts, bearings, instruments, baby bottles, electronic components, jewelry polishing and other fields. Features: 304 material to prevent oxidation, high-quality guarantee, exquisite appearance, precise oil pressure, stable structure, polished and polished, no burrs, tough, rounded, high-quality and beautiful, high-quality, strict quality approval, moisture-proof, rust-proof, acid-base and corrosion-resistant. The pictures are for reference only, please choose your requirements (size, quantity).