2Pcs SBR20-800mm Linear Slide Guide Rail with 4Pcs SBR20UU Bearing Block, Linear Sliding Guideway Length 31.5 inch(800mm) for Fully suppoeted Shaft Rod

These worked great for my 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.

Used to make a router sled. Works great

Very little backlash or movement. Not sure it is use it for machinist precision, but excellent for wood working level precision.

as advertised and shown on Amazon. Packaging could use some redesign to "survive" shipping.

Astounded by the fantastic quality and the fact package arrived undamaged.

Exactly what I needed for router sled. I had an issue with 2 of the bearings, wrote to customer service and had replacements in less than a week! Linear rails are heavy duty and router is riding smoothly. Full size Makita very heavy! Totally happy I finally ordered these!

Hardware was wrong length. No washers. On top of that the holes dont line up for hardware what a JOKE! One of the rollers does not roll well and binds up. I have had to spend hours DRILLING holes to get the hardware to fit track with supplied hardware. Then I had to go to hardware store to purchase spacers for 10.00 because the hardware is too long and bottoms out. Very displeased with this purchase.