Polycarbonate Swivel Chair - Ergonomic Office Chair with 360-Degree Rotation for Home & Workspace - Comfortable Desk Chair for Long Hours of Sitting

A dramatic improvement Speedball Swivel form the old, heavy, 'S' swivels 

An original Jim Bradley design our polycarbon swivel represented a significant breakthrough in swivel design when it first came onto the market place. Our swivels are a dramatic improvement form the old, heavy, 'S' swivels  

Combined with the shorter strap of our speedball use of the Jim Bradley swivel leads to a drastically reduced length of the arc of the speedball when struck, leading to a truer, quicker hit and a more intense and beneficial work-out.