Solid Precision Steel Ball, Bearing Steel Ball, Round Steel Ball, Steel Ball, 7/8/9/10/11/12mm, 100 pcs-9mm

Material: bearing steelHardness: above 60 HRCSize: 7mm, 8mm, 9mm, 10mm, 11mm, 12mm

• Size: 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, 100 pcs
• High-quality materials, these ball bearings are made of high-quality carbon steel, which can withstand greater impact.
• Improve accuracy. With these ball bearings, you can get high accuracy every time you hit the ball, so you can continuously improve and improve the efficiency of the ball.
• Widely used: These ball bearings can be used not only for slingshots, but also for bicycle bearings.
• Improve accuracy: With these ball bearings, you can get high accuracy every time you hit the ball, so you can continuously improve and increase the efficiency of the balls.