The DWCPRKCAST Single Brake Rack Casters are designed specifically for building and customizing your rack system. With our 9000 Series Rack System you can achieve even the most complicated set-ups. These casters enable easy mobility and repositioning any time you require it. Perfectly sized for use with our heavy-gauge stainless steel tubing, these rack wheels will make your life easier. ***This item may ship direct from the manufacturer. Please contact us for estimated delivery if needed.***