Stem Caster Kit, Swivel Caster, 550 lb Load Rating, 300 to 999 lb, 2 in Wheel Dia., 1/2 in Wheel Width, Polyurethane Wheel/Tread Material, 2 1/16 in Mounting Height, Plain, 7/16 in x 7/8 in Caster Stem Size, Friction Ring, Nylon Caster Frame Material, Unfinished Frame Finish, Yes Non-Marking, 2 Number of Wheels, Package Quantity 5 These friction-ring stem caster kits come with multiple casters and are used for applications where all the casters on a piece of office furniture or equipment need to be replaced. These casters are installed on chairs, carts, fixtures, and similar items used in environments where the casters won't be exposed to heavy loads, chemicals, liquids, or high temperatures, such as offices and retail settings. Soft-wheel casters are less likely to damage hard tile or woo.
Cheap quality but not bad. Seat is pretty comfortable actually. Easy to put together. Very light weight so if you're on a hard service like tile expect your seat to roll 10 feet behind you everytime you hop off. Seat shock holds it position well.
Comfortable and is working for me. Using my counter height dining table for work at home. Much better than the hard seat and back that's part of the table set.