1.Steel with chrome plated and nylon wheel. 2.Size:59*R50*R11mm .capacity:50kgs 3.Packing :200pcs in one carton,.

Adjustable window roller:

1.Surface treatment and size according to your requirment..

2.Easy to install, safe ,durability and  heavy loading ability.

3.suitable for  all kinds of profiles.

4.pvc roller without bearing.5.good quality and reasonable price6.excellent surface7.long life proformance

Office chair caster wheel