General description Are the casters on your stool or office chair worn out? They may become fragile due to movement and load. Instead of buying a new chair, you can replace the casters and give new life to your office furniture! This set of 5 swivel casters is designed for office chairs, stools, gaming chairs, and ergonomic stools, ensuring stability and smooth movement. Technical specifications Stem dimensions: 11 x 20 mm Diameter: 50 mm Height: 80 mm Width: 50 mm Load capacity: 150 kg Rotation mode: 360° rotation Color: black Compatibility and accessories Fits office chairs or stools equipped with standard 11 mm turbine connectors Installation Installation type: insertion stem