CHUANGNENG 2Set Linear Rail SBR20 500mm Linear Rail Guide Fully Supported Linear Rail Shaft Rod with 4 SBR20UU Block Bearing,for Automated Machines DIY CNC Routers Lathes Mills

As described

I'm using this rails to make a sled for my router they should work great. The only reason I'm not giving them a 5 star is that I was missing 2 bearing blocks when they arrived, I contacted the seller and they sent them quickly.

Only the rails came the Solide Blocks did not even come with the package. Fast customer response time. Let’s see how long it takes to receive missing parts.

I ordered a 2000mmm rail set that didn't arrive. Taume was very responsive by e-mail and made an attempt to track the package down, but no luck. They immediately sent me a new set, which just arrived well-packaged and undamaged.

Using these for a YouTube video about making an automatic slab flattener and for the price they are awesome rails. Extremely straight and flat and packed well to survive shipping across the country. I will definitely buy more.