Tom Of Finland Neoprene Ankle Cuffs with Locks Black. These Neoprene ankle 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 wrist cuffs available, sold separately. Measurements adjustable from 12.5 inches to 14.5 inches in length, 2.25 inches in width. Materials Neoprene, metal, plastic. Color Black. Note includes lock and two keys.