General description 600Pcs 12 Size Stainless Steel Precision Balls assortment kit includes a variety of sizes: 90pcs of 1mm, 80pcs of 2mm, 80pcs of 2.5mm, 50pcs of 3mm, 50pcs of 3.5mm, 50pcs of 4mm, 50pcs of 4.5mm, 50pcs of 5mm, 30pcs of 5.5mm, 30pcs of 6mm, 20pcs of 7mm, and 20pcs of 8mm. Made from 304 stainless steel, these precision balls are designed for high wear resistance and precision, featuring a smooth finish with no burrs. They are ideal for use in various applications including auto parts, motorcycles, bicycle bearings, casters, and drawer slides. Technical specifications Material: Stainless steel Size of storage box: 10.01 x 3.99 x 1.30 cm Measurement allowed error: +/- 1-3 cm Usage Can be used as mixing balls for stirring paint, nail polish, etc. Coated with a small amount of grease to reduce friction and prevent corrosion and rust. Other information