Features: 100% brand new and good quality. 7.62mm Phosphor Bronze Bore Brush. Material: alu.holder+bronze bristle. Model: .30cal. Size: diameter of bristle is 8.64mm, bristle length is 54mm, full length is 83mm. Screw thread: 8-32. Package List: 5 x Brush Brand Unbranded MPN Does Not Apply UPC Does Not Apply Country of Origin China Type Brush Size 7.62mm/.30cal QTY 5PCS Screw thread 8-32 .