Boomerang Retractable Outdoor Products builds the finest retractors for boaters and fishermen to secure their tools and tackle. The FOX40 Safety Whistle with a Heavy Duty Retractable Fishing Gear Tether meets current safety regulations for personal watercraft. It's the perfect sound-producing device to attach to a life jacket. Boomerang retractable gear tethers are built in the USA with globally sourced materials.