Excellante 5" rubber wheel caster with brake, comes in each

5" rubber wheel caster with brakes is an optional accessory to the shelving unit. made to create mobility and allow for easy transport of the wire shelving units. able to transport and stop the shelving unit with the attached brakes. can hold up to a max of 600 lbs. the wheels are constructed of composite polyurethane & abs for durability and performance. the caster is nsf certified.