Screw rod specification:The pack comes with 4 low profile caster wheels without brakes . Stem Diameter 1/4"(6mm), Stem Length 5/8"(15mm) Threaded Stem Casters Swivel Casters
TPR Wheels & 360 Degree Rotation: Each of the workbench caster wheels are made from superior sturdy Polyurethane materials and is well constructed. You can glide the swivel casters effortlessly on wooden floors and carpet as you are guided around corners,It's very quiet and doesn't hurt the floor
Double Ball Bearings & Strong Load Capacity: These 1 inch low profile caster wheels are designed for furniture, providing smooth, silent, and sturdy rotation. Each wheel has a loading capacity of 30lbs, with a total capacity of 120lbs
Multiple Applications: The furniture workbench caster wheels can be widely used for a workbench, wood box, kitchen table, cabinet, furniture, and other items commonly found in the workshop, garage, kitchen, factory, and office. It's very convenient for you to clean the floor by moving the workbench smoothly
Features a M8x15 mm threaded bar and nut spacer that securely attaches to furniture, carts, and workbenches without tools for safe rolling.