30Pcs 3CM Dia Carbon Steel -15A Ball Transfer Unit Ball Bearing Conveyor Roller Ball Transmission Tool

Ball Transfer Unit is perfect replacement for your broken one on your office chair. Specifications: Model Number: -15A Type: Window Rollers Surface treatment: Zinc Plating Model: -15A 5/8-A Length: 50mm Width: 30mm Height: 2mm Mounting Hole Pitch: 40mm Fixing Hole Distance: 4mm Ball Diameter: 15.875mm (5/8 inch) Single Load: 10kg (Max. 20kg) Single Weight: 43g Color: Silver Material: carbon steel Package Contents: 30 x Ball Transfer Unit Only the above package content other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.