A bed restraint kit is a great option for a lot of people. The set tends to fit in an area that can be hidden away, but also with the weight of the bed helping once the restraints are on the prey is unable to get out. Adjustable 12 foot (4M) Bed Straps can be used under the mattress, around the headboard or bed posts. This leads to them being in a position that you are going to love and really be able to take full advantage of. Compatible with Sinful Wrist and Ankle Cuffs (sold separately). Made of vinyl and nickel-free hardware. Each set comes with two vinyl straps and two 12 foot super strong nylon straps.