<h3>Key features</h3><ul> <li>Linear Motion Ball Bearing Slide Unites SC8UU / SCS8UU</li> <li>All items sent from factory directly</li> <li>Main parts : Aluminum housing + LM..UU linear ball bearings</li> <li>Main application : working with linear rails.</li> <li>Linear Ball Bearing Motion Bearing CNC</li> </ul><p>4 pcs</p><p>Free shipping included. 30-day hassle-free returns.</p>