Boomerang Tool Company's premium line of Retractable Hunting Gear Tethers are built in the USA with a strong molded hunter green polycarbonate case,stainless steel spring and convenient easy change end fittings so you can change your tools with just a pinch. Using the universal wire end fitting,attach your hunting gear to the tough retractable cord made with DuPont Kevlar fiber. When your tether is secure, grab your gear and let it go,the built-in tether retracts back into place until you need it again. With Boomerang Retractable Hunting Gear Tethers your rangefinder,gps and other hunting gear will be always handy and never lost.