Features: Transform your office chair or stool with our 5Pcs Glides Replacement, designs to convert rotates Casters Wheel into fixed stationary castors, ensuring stability and preventing scratches on all floor types. Crafted from nylon, these replacement glides offer excellent tractions and noise Reductions, making them a superior alternative to traditional casters for smooth surfaces like wood, tiles, and laminates. Ideal for office workers, home office users, students, and the elderly who seek enhances comfort and safety when using chairs in various setting . Perfect for office environment , home study areas, and conference room , these fixed casters maintain chair stability, preventing unwanted movement and enhancing productivity. Easy to install without tool , these heavy duty, super quiet glides come with foam Pad to reduce frictions and vibration, providing a simple and safe seating experience. Specifications: Material: nylon+felt Size: about 4.1x3.4cm/5X5.7cm(optional) Package Includes: 5xFixed Stationary Castors note: Please allow 1 to 3cm error due to manual measurement, please make sure you do not mind before you bid, Due to the differences between different monitors, the picture may not reflect the actual colorful of the item.