Enjoy Caster Patented Product -PU Caster with protector
1. Delivery chair to customers still keep caster brand new and clean.
2. During caster moving won’t come off, even on asphalt road .
3. Suitable for 50mm and 65mm diameter caster.
4. Protector combine with caster, unable to sell alone.
more info about caster with portector:https://www.enjoycaster.com/Protective-Caster.html