One Loose 5/8 inch Tungsten Carbide Ball Bearing, Ball is made of tungsten carbide, Ball size is 5/8" inch (15.88mm), Loose Ball is extremely hard alloy made from tungsten and carbon And it is high corrosion wear resistance.

• Item: 5/8" Loose Balls
• Size: 5/8"
• Hardness: 90 Rockwell
• Material: Tungsten Carbide
• Quantity: One Loose Ball