Rated 5 out of 5 OK at the price
I last bought these 5 years ago, and whilst the price has gone up 20% they are identical to the ones I was replacing. The last set had worn down the rear nylon wheels, which is understandable given the number of open / close cycles the drawer had been through (around 300 per day). Once there is a flat on a wheel, it continues to wear until unusable.
The real downside of these is that they can't take a lot of weight in the open position, so consider something like 51598 if your drawer is to be operated by a gorilla.
Rated 5 out of 5Â by billybuoy Kitchen drawer runner
Ideal perfect replacement and was able to check at store
Rated 5 out of 5Â by woodcreator draws that open
good hardware, simply to fit, give long lasting performance
Rated 5 out of 5Â by Photony Drawer runners
Too early to comment on reliability but it's looking good so far.