The Grip Waist Locking Waist Belt with D-Ring. Steel D-ring fits most chain and hinged handcuffs. Contructed of seat belt type material with secure locking buckle. 58 ½” long. Free instructional DVD included with every order. Available in nylon seatbelt type material or Kevlar. Kevlar version has greater cut resistance and is heat resistant to 1000 degrees Fahrenheit.