ALLOWS WORKER WHO IS SUSPENDED TO STAND UP IN THEIR HARNESS TO RELIEVE PRESSURE. A SAFETY ACCESSORY THAT CAN BE ATTACHED TO MOST HARNESS BRANDS OR STYLES RIGHT IN THE FIELD INSTALLATION TO YOUR HARNESS IS FAST AND EFFICIENT JUST CHOKE OFF TO STRAP AND IT'S READY EXTREMELY COMPACT AND LIGHTWEIGHT DESIGN STAYS OUT OF THE WORKER'S WAY. DEPLOYMENT AND OPERATION IS FOOL-PROOF SIMPLY UNZIP AND HOOK STRAPS TOGETHER.