<h3>Key features</h3><ul> <li>HGR20 linear motion guides set includes 2Pcs HGR20-2000 mm linear guide rail and 4Pcs HGH20CA bearing blocks.</li> <li>Professional and technical rail and block, high rigidity and high load.Smooth running, low noise and non-pollution</li> <li>Made of bearings steel, surface chrome plating treatment beautiful anti-rust, more durable, designed to achieve high precision linear motion, low friction coefficient</li> <li>Easy to install and does not require any maintenance, Support rails with pre-drilled holes are easy to install. The stainless steel linear optical axis can guide the bearing for linear movement</li> <li>The CNC linear rail is widely used in automatic equipment, precision measuring equipment, and many other machines that need precision linear movement</li> </ul><p>Free shipping included. 30-day hassle-free returns.</p>