All Globe racks are made with T-channel aluminum rails to maximize versatility, capability, and creativity. Many Globe-branded accessories mount directly to these channels, but they will also accept just about anything you can imagine bolting to them. The Rack Customization Kit provides an assortment of bolts and T-nuts compatible with Globe front and rear rack rails. This allows you to bring your own milk carton, wine crate, cooler, or other custom items to mount on your rack. Two T-channel rail pieces can be used to increase the effective dimensions of your rack to provide a more secure platform for large or awkward gear.