fixed castor Ø 100 x 27mm black rubber tyre Load capacity 80kg - Industrial Wheels - Industrialwheels.com
Amazon.com: Slipstick CB681 2 Inch Floor Protector Rubber Caster Wheels (Set of 4) 5/16 Inch Stem or Top Plate Mounting Options - Black/Gray Green : Office Products
Slipstick Rubber Caster Wheel 4-Pack 2-in Rubber Swivel Caster in the Casters department at Lowes.com