High quality: wearresistant rubber wheels are suitable for almost all types of floors, strong and durable, wearresistant, shockabsorbing and quiet.Material: The screw caster is made of pure copper and the screw is made of iron, high hardness, bright in color, beautiful and fashionable, exquisite workmanship, solid and durable.Features: precisioncrafted solid brass casters, quiet, wearresistant, smooth rolling, 360 degree rotation, good stability.Easy to install: The casters with screws are easy to use, and the package contains screws for easy installation in a short time.Usage: They are generally used in small equipment and furniture for small spaces, including piano legs, coffee tables, sofas, plant shelves, bookshelves, toy boxes, boxes disturbance, etc.