Perfect for beginner bondage play. CAUTION: Being handcuffed can be a deeply erotic experience for both of you. Product Specifications: - Keys included, but not necessary for quick release - Quick release lever for peace of mind - Minimum internal cuff circumference measures 13 cm - Maximum internal cuff circumference measures 19 cm - Ingredients: 100% nickel free metal - Includes: One pair of Ring Metal Handcuffs.