Flexible rotation and smooth movement are a good choice for moving furniture. It is a perfect assistant to realize the DIY of furniture by yourself. Product parameters: 360-degree flexible rotation: built-in precision double-layer ball bearings more smooth and labor-saving when rotating suitable for different floors is the most mobile crib office chair cart fence display Good choice. Quality Assurance: If there is any damage when receiving the product please contact us immediately and we will provide replacement or refund according to your request. U-shaped swivel casters: U-shaped mounting plate design made of cold-rolled steel tough texture stable structure not easily deformed waterproof and rust-proof durable strong load-bearing. High-quality accessories: equipped with a brake device which can stop turning during the movement and fix the position to avoid random movement which is stable and safe. The rivet is fixed the connection is tight and it is safe to use. The dust-proof plastic cover prevents foreign matter from entanglement and moves smoothly. Silent casters: The wheels are surrounded by thick rubber material environmentally friendly odorless soft texture non-slip and wear-resistant effectively reduce noise when moving and provide you and your family with a quiet home environment.