Transporting easily maneuverable and rolling cargo can be extremely tricky if you don’t have the right kind of tools for the job. That’s when you need the reliable holding strength of these ¼-Turn Retainers and Assemblies. Built from the kind of high-quality materials that you can trust, these retainers are designed to effectively hold the carts in place and physically block them from moving. They can be rotated by 90 degrees in order to restrain the cart and cargo, and then they can be easily rotated back 90 degrees to clear room for loading or unloading the cargo. These retainers are available in standard red or gold and silver colors. Other finishes are also available.