Cuffs are fully washable. Made using nickel-free metal to prevent allergies. Hypoallergenic rubber free neoprene also is great for individual with latex sensitivities. Plus vegan friendly contains no animal products. Each cuff measures up to 10 inches. Can be used to restrain wrist or ankles in females or wrist in males may be a little too short to accommodate a man's ankles. Shown in both available colors in pink on black or all black. Item number KL921 All black cuffs, KL922 Pink on black cuffs. Sex Toy Model is wearing the pink and black cuffs. Each sold separately. Kinklabs.