Neck collar attached to non-adjustable darby style handcuffs and non-adjustable darby style leg irons. Distance between collar and handcuffs is 10". Distance between handcuffs and leg irons is 24". Comes with 2 keys each for collar, handcuffs, and leg irons. Neck collar is size large with 18 3/4" inside perimeter. Weighs 63 ounces.