Thick steel 2mm full-thickness, four-hole positioning, good load distribution, undeformed in long period.
Twin wheel design and nylon housing handle capacities up to 77 pounds per 3 inches caster.
High impact polypropylene features elasticity, toughness and durability. Rolling on all kinds of floors, including concrete floor, carpets, tile floor, wood floor, and slate floor.
Brakes function, safe and worry-free: lightly step down the brake to lock, it can be effectively fixed and prevent it slipping away.