Window Box Roller:
1.Material: Aluminum
2.Suitable for sliding window.
3.Durability and smooth operation

1.Material: nylon + iron + 608 bearing

2.Color: available

3.Suitable for sliding window.
4.Durability and smooth operation

We are a professional manufacturer of window handle ,window hinge ,window lock and other window hardware, if you are interested in our products , please contact me at any time.