Cheap And Discounts 10 Pcs 0.5 Inch Nylon Roller Ball Trolley Furniture Castor Screw Mounted Ball Bearing Swivel Caster Tool Wholesale. Buy Directly From Merchant AA47 housekeeping products Store. Enjoy ✓Free Shipping Worldwide! ✓90 Days Buyer Protection. ✓Easy Return. ✓Money Back Guarantee.