Hinged Police Handcuffs are perfect for restricting hand and wrist movement. They are made of high quality, professional satin nickel-finished steel. These handcuffs lock the same as police handcuffs, but will keep your lover more restricted in their movements. They have a double locking feature and come with two keys. The inner perimeter measures 5.75" to 8" and these cuffs weight 11oz. So now you can read rights to your lover, maybe the right to be sexually aroused, excited and stimulated.