1. Material: stainless steel
2. Specification: 4 universal wheels in one pack
3. Use viscose design, no need to work hard, just stick it and use it
4. It can be transformed into a mobile trolley and put into a small space such as the bed bottom
5. Strong glue, not easy to fall off
6. Round edges without cutting hands
7. Rugged rollers, wear-resistant and smooth
8. Dimensions: 43x40 mm
9. Weight: about 8g (single)