Long lasting window roller introduction: 

1) The long lasting window roller has excellent surface for sliding windows and doors
2) Plastic or metal rollers are available 
3) The long lasting window roller is fits and rolls well 
4) The long lasting window roller has good surface and performance 
5) Long life of the long lasting window roller 
6) Dimensions of the long lasting window roller : 20.7 x 49.7 x 60.5mm
7) Material of the long lasting window roller : chrome plated, brass core, nylon wheel