Features:

  • Made of high quality bearing steel for low noise and long service life
  • Double sealed to avoid contaminants entering and save lubricant
  • Have a 12mm inner diameter, a 20mm outer diameter, and a 30mm height
  • Great for small hobby 12mm shaft/rod projects
  • Use for many different projects
Five Stars

The student are very happy

Good product, good packaging.

These did the trick, and were bagged in pairs inside another bag!

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