Dicunoy 4 PCS Sliding Patio Door Rollers, 1-1/4" Single Roller Steel Ball Bearing Replacement, Sliding Glass Door Tandem Roller Assembly Wheels for Screen Doors, Gates, Windows

They were perfect and for the price I wish I find this before I bought the other ones for $20 only two and this is four for $20

Used these for a lady friend of the wife's.. Work great. Perfect fitment. Nice quality. Solved trouble with her patio door.

Why did you pick this product vs others?: Excellent product, great price, and fast delivery. Thank you.

Quick shipping. Product as described

Excellent upgrade for my doors that always jumped track due to age and wear. One keeps the other on the track

Fit in door like originals and easy to adjust. Door is working very smoothly!

These sliding glass door wheels have sealed bearings. I expect they will last a lot longer with many more years of smooth operation than the worn-out ones that I just replaced with these. Beyond the sealed bearings, the quality seems to be very good. The iridium plating should give the finish some resistance to the weather and corrosion. There are two typical or common cartridge styles. Make sure you are buying the correct one. You might have to remove your old wheel cartridges first to confirm the style.

These are really heavy duty and they are really nice. The metal is thick and they actually used bearings in the wheels. They move nicely and they are really nice. I'd highly recommend them if you are looking for them and they fit your door.