These Neoprene wrist cuffs are adjustable, comfortable, and come with a Tom of Finland brand lock and two keys. The double layered material is stamped with a metal Tom of Finland logo. Fully adjustable and ideal for long term wear. Matching collar and ankle cuffs available, sold separately. Measurements: Adjustable from 11 to 14 inches in length, 2.25 inches in width. Material: Neoprene, metal, plastic. Color: Black. Note: Includes lock and two keys. Free collector print included!