There comes total 10 pieces mini bearings which you may use for many different projects
Bearings have a 6mm inner diameter, a 13mm outer diameter, a 5mm thickness and a 15mm flange
These mini bearings are made of high quality bearing steel for low noise and long service life
They are double shielded to avoid entering and save lubricant
These are great for small hobby 6mm shaft/rod projects such as electric motor, 3D printer, quadcopter or ship model