![[15161] 17 mm Aluminium Ball-Race Rollers (3-Spoke Type)](http://chicohobby.com/cdn/shop/products/15161_1_{width}x.jpg?v=1660387250)
![[15161] 17 mm Aluminium Ball-Race Rollers (3-Spoke Type)](http://chicohobby.com/cdn/shop/products/15161_1_1024x.jpg?v=1660387250)
Description
It is a roller with a built-in ball bearing that is lightweight, has almost no torsion or deflection, and rotates smoothly.
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