2Pcs SBR20-1200mm Slide Linear Rail with 4Pcs SBR20UU Square Type Bearings Block for Fully Supported 20mm Linear Rail Length 47.2 inch(1200mm)

Arrived promptly and well packaged with no damage. Rails are precise and accurately sized as well as straight and solid. Very good product and price. Will buy again.

AWESOME!

Using it for a sliding base on my flight sim chair. Only dropped a star for two reasons: one bearing drags badly and there's no grease on said bearings. Otherwise it's fine. I am around 200 lbs plus an additional 100 ish lbs for the seat and other stuff. Slides fine except the one that's dragging but otherwise works fine.

Very good quality rails,nicely made. Bearing pieces glide perfectly. I am mounting a compound miter saw, using metal plate bolted on with included metric bolts. I welded threaded rod to metal plates to bolt the saw. I mounted the railed on 2” square tube. The saw slides flawlessly on the 3’11” rails

Worked perfectly. Easy sliding. Well made.

I bought these and some other rails to flatten some slabs from a tree I cut up. No complaints here. I bought a Bora Centipede table and screwed them down to 1/2" plywood. Unfortunately, the plywood bowed. I recently purchased the Bora t-track tabletop mdf panel and I am currently trying to figure out a way to install this in the t-track. I want to mount the rails in such a manner that I don't have to screw into the wood and I can add spacers underneath to elevate the rail.

Works great for my homemade router sled.

When I received these rails, I was very impressed with the quality material used for these pieces! These are perfectly machined and not made with flimsy, substandard materials. You just don't see this type of quality much anymore. They easily handled the load that I used them for (but rated much higher) - with very smooth gliding action. I can't say enough about the quality of these pieces - and at an affordable price! Would highly recommend these rails for most any application where quality is critical.