ITEM NAME:80pcs 4mm Hunting Slingshot Steel Balls High-carbon Steel Shooting And HuntingM& Description: Brand new and high quality These ball bearings are precision engineered for perfect consistency of weight, dimensions and finish. Made from high grade steel, these ball can withstand tremendous amounts of impact force,ideal for bicycle bearings. Usage: Slingshot bullets or Bicycle bearings accessories Brand new and high quality. Material: Steel Product Name: Ball Color: picture color Quantity: 80pcs Size: 4 mm diameter ( 1inch=2.54cm=25.4mm ) Package included: 80 x Steel Ball Notes: 1.Due to the light and screen setting difference, the item's color may be slightly different from the pictures. 2.Please allow slight dimension difference due to different manual measurement..Usage: Slingshot bullets or Bicycle bearings accessories. Quantity: 80pcs. Material: Steel.