Standard Diameter: 1-1/4" / 1.25 Inches

Metric Diameter: 31.75mm

Grade: 100

Material: AISI 52100 Chromium Steel

Ball Weight (each): 4.6127 Ounces / 130.767 Grams

Chrome steel balls offer the precise geometry and fine surface finish that makes them especially useful for bicycles, casters, drawer slides, door locks and many other applications.