Lock down your slave and make them submit with this sleek, high quality, round chrome collar. The gleaming heavy chrome plated steel provides a nice weight and feel against the skin and the rounded edges bring an element of comfort to the submissive experience. An O-ring at the front of the collar allows you to attach a leash, rope, or any other bondage equipment to suit your scene. The included hex key locks this collar down tight so they will feel nothing but cool steel around their throat until you are finished having your way. Measurements: Collar band is 1.37 cm thick with 12 cm inner diameter (37.5 cm circumference), O-Ring is 2.9 cm in inner diameter. Comes in one size only please measure carefully. Note: Includes hex key to lock and unlock collar