Features: Protect your floors with these Floor Protector Plastic Castors Wheels, designed for smooth, quiet rolling and full swivel action on hardwood, tile, and other hard surfaces. These durable casters offer versatile mounting option with both stem and top plate attachments, ensuring easy installation. Ideal for homeowners, office workers, DIY enthusiasts, furniture manufacturers, and repair professional seeking reliable mobility solution for their furniture. Perfect for use in homes, offices, or industrial setting, these casters are suitable for moving and adjusting sofas, bookshelves, desks, and more, enhancing space flexibility. The bearing weight of a single wheel is about 25KG, and four wheels are about 100KG. Specifications: Material: metal+plastic Size: about 4x6.5cm/4.9x7.5cm Package Includes: 4xQuiet Rolling Casters note: Please allow 1 to 3cm error due to manual measurement, please make sure you do not mind before you bid, Due to the difference between different monitors, the picture may not reflect the actual color of the item.