3" 4" 5" bolt hole PU double brakes caster wheel nylon pedal
	
 
	Housing:
Made of pressed steel,zinc plated.
double ballrace swivel head
transparent dustproof seal 
	
Wheel:
Material:Polyurethane
Hardness:90±5 Shore A
Bearing type:Precision ball bearing
Temperature:-20℃~80℃ 
	
	
 
 
	
	
Feature:
- Polyurethane PU material, silence, Eco-friendly material,
- Wildly use in office chair,hand truck and shopping cart.
	
	
	
	
 
	
 















 
                                                
                                             
                                                
                                             
                                                
                                             
                                                
                                             
                                                
                                            








 
            