- Material: PU wheel +steel fork and bolt
- Ball bearing
- Bolt size: 11x22mm or 10×22
- Load capacity: 40-45kg each caster
- Color of wheel, can be picture or all black
- Packing: 5 pcs in a small box, then 12 boxes in a carton, box size:20×12.5×9.5cm, Carton size:54x21x31cm, one carton weight is 15.5kg.