Features: _x000D_These bearings are made of high quality steel for low noise and long service life. _x000D_They are rubber sealed to avoid contaminants entering and save lubricant. _x000D_Bearings have a 25mm inner diameter, a 37mm outer diameter, and a 7mm thickness. _x000D_These are great for small hobby 25mm shaft/rod projects.There comes total 10 pieces miniature bearings which you may use for many different projects. _x000D_Specification: _x000D_Model: 6805-2RSMaterial: Chrome steel _x000D_Type: Deep-groove high-speedRolling Element: Single rowInner Diameter: 25mm / 0.98in _x000D_Outer Diameter: 37mm / 1.46in _x000D_Thickness: 7mm / 0.28in _x000D_Quantity: 10pcs _x000D_Weight: 109g / 3.8oz(approx.) _x000D_Package list: _x000D_10 * Bearings 1These bearings are made of high quality steel for low noise and long service life. 2They are rubber sealed to avoid contaminants entering and save lubricant. 3Bearings have a 25mm inner diameter, a 37mm outer diameter, and a 7mm thickness. 4These are great for small hobby 25mm shaft/rod projects. 5There comes total 10 pieces miniature bearings which you may use for many different projects.