Sincerely Locking Lace Collar and Leash from Sportsheets. Explore boundaries and introduce soft submission play with your partner in our Locking Lace Collar and Leash. Comfortable to wear for long periods of time or just long enough to make things exciting during your fantasy play. Pair with your favorite stilettos or remove every stitch of clothing and just bring submission to the bedroom. Lace collar fits up to 19.75 inches necks. Materials polyurethane PU, polyethylene PE, nickel free metal.