4pcs Metal Steel Swivel Ball Caster Wheel Car Robot Universal Eye Round Wheel for Machinery Trolleys Furniture Hardware

4pcs Metal Steel Swivel Ball Caster Wheel Car Robot Universal Eye Round Wheel For Machinery Trolleys Furniture Hardware

Specification:
Brand new and high quality
Material: Metal 
Main bead nylon
Main bead carbon steel
Color: Silver

Quantity: 5pcs, 10pcs, 20pcs
Application: small machinery, trolleys, furniture and rack, etc

Note:
Please allow 1-2mm errors due to manual measurement
The correct use of the wheel is to install the ball up, if it is used upside down,  often lead to ball stuck, rolling is not smooth, this does not belong to  the quality problem

package:
4pcs / pack *  Ball universal wheel