Features 1These miniature bearings are made of high quality bearing steel for low noise and long service life. 2They are double shielded to avoid contaminants entering and save lubricant. 3Bearings have 6mm inner diameter, 15mm outer diameter and 5mm thickness. 4These are great for small hobby 6mm shaft/rod projects. 5There comes total 10 pieces miniature bearings which you may use for many different projects. Specification Features: These miniature bearings are made of high quality bearing steel for low noise and long service life. They are double shielded to avoid contaminants entering and save lubricant. Bearings have 6mm inner diameter, 15mm outer diameter and 5mm thickness. These are great for small hobby 6mm shaft/rod projects. There comes total 10 pieces miniature bearings which you may use for many different projects. Specification: Model: 696ZZ Inner Diameter: 6mm / 0.24in Outer Diameter: 15mm / 0.6in Thickness: 5mm / 0.2in Property: High speed Application: Universal Rolling Element: Single row balls Race Type: Deep groove race Material: Bearing steel Angle: 15 degree Sealing: Double-shielded Weight: 43g / 1.5oz (approx.) Package list: 10 * Bearings Package List