Description: 【Durability】Constructed from quality plastic and metal materials, this rowing machine bearing wheel is designed for long term use and good wear resistance 【Smooth Operating】Features a 6900z bearing with a 10 mm center hole, ensuring smooth, quiet movement and flexible sliding for an enhanced workout experience 【Easy Installation】Designed for hasslefree installation on your rowing machine or fitness bike, allowing you to quickly replace worn parts and maintain optimal performance 【High Load Capacity】Engineered to support heavy loads, this bearing wheel offers strong compression resistance and durability under frequent use 【Wide Compatibility】Suitable for most standard fitness equipment including water resistance rowing machines and exercise bikes, providing stable motion to improve your overall workout Specification: Material: Plastic, Metal Size Chart: 13cmx8cm/5.12inchx3.15inch Package Includes: 1 Rowing Machine Bearing Wheel Note: Please allow slightly errors due to manual measurement and different monitors.