I needed a way to flatten a very large end grain cutting board. They worked great as the support rails for a router sled. Easy to take down too.

Excellent above standards

Just wish they made longer ones.

Exactly what I wanted but I couldn't find where to order more of the blocks

Exactly what I expected. Ball bearings are low quality, but was to be expected.

These things are rock solid and extremely heavy duty. would definitely buy again, and in fact, I did.

Everything you'd expect. Straight, clean rails that are working perfectly to support my router sled. No problems or complaints.

Everything you'd expect. Straight, clean rails that are working perfectly to support my router sled. No problems or complaints.

their smooth and works great

good