Features: These bearings are made of high quality steel for low noise and long service life. They are rubber sealed to avoid contaminants entering and save lubricant. Bearings have a 10mm inner diameter, a 22mm outer diameter, and a 6mm thickness. These are great for small hobby 10mm shaft/rod projects.
There comes total 10 pieces miniature bearings which you may use for many different projects.

Specification:
Model: 6900 2RS
Material: Bearing steel
Type: Deep groove high speed
Rolling Element: Single row
Inner Diameter: 10mm / 0.4in
Outer Diameter: 22mm / 0.9in
Thickness: 6mm / 0.2in
Quantity: 10pcs
Weight: 110g / 3.9oz(approx.)

Package list:
10 * Bearings