The FCS range of interchangeable leashes offer the highest levels of quality, design and construction. Extensive research and development along with rigorous testing have produced a leach that is superior in comfort, strength and performance.- Engineered strength polyurethane cord to provide the ultimate combination of strength, stretch and elasticity- Polyurethane overmold- Detachable rail saver and cuff- Smooth rotating swivel assembly featuring nylon housing and machined stainless steel insert- 360 degree flexible horn to eliminate point pressure on the ankle- Minimal molded rubber badge to prevent spring back- Deluxe padded high density neoprene ankle strap with soft lycra edging- Extra strong US made Rip and Grip Velcro at cuff and rail saver