The Arsenal 5719 Wire Cable Key Rings are designed to keep items and tools close for quick and easy access while on the job. Multi-functional in use, these key rings can be attached to aprons, duffel bags, backpacks and more. They are built to last and feature black coated iron for added protection and durability over time. To install, simply unscrew the twist lock mechanism and thread through the captive eye of a tool, such as cleaning brush, duster, mesh wash bags, glove clips or keys, and screw back together. Compatible with the Arsenal 5715 Cleaning Apron and Arsenal 5716 Server Apron.