Total 4 pieces swivel casters - two with locking brakes and two without brakes. Heavy-duty construction consisting of a steel bracket, double steel bearings and a polyurethane core is designed to withstand the maximum load of 440 LB. Caster design allows for 360 quiet rotation and non-marking rubbers make it ideal for gliding on any surface - carpet, concrete, wood, laminate and tile. Suitable for furniture, chair, cart/stand.

 PRODUCT FEATURES

- Wheel width: 0.94 inch. Wheel diameter: 2 inch. 
- Two with metal brakes & two without brakes 
- Threaded stem length 15mm & diameter 10mm – compatible with all standing desks by ApexDesk EXCEPT VORTEX M EDITION 48", 55" and 60" Desks
- Added height: 2.75”. Load capacity 440 lbs – 110 lbs each caster 
- Black non-marking rubber. Safe on carpet, concrete, wood & tile surfaces 
- Compatibility: Works with the Elite/Elite Pro and Flex Series Standing Desk. Does not work with the Vortex Series M Edition 48", 55", and 60" Desks.