Description 25mm (1″) TPU collar strap with D-Ring These tough straps are manufactured from nylon webbing coated in Thermoplastic Polyurethane, fastened with a zinc alloy buckle and D-Ring. TPU is an extremely durable hybrid material – a mixture between hard plastic and soft silicone. It produces a strong, flexible collar that is also waterproof and oil resistent, which makes for easy cleaning with a quick hosedown. Fits neck sizes up to 60cm We can custom fit a collar strap for many training systems, just give us a call to see if we can help.