Introducing the Rebellion Reign Under Mattress Restraint from our exquisite collection. Crafted with durability in mind, this set features PU wrist and ankle cuffs, complete with four adjustable nylon straps that can be effortlessly installed beneath your bed or mattress. Ideal for beds without posts, it's versatile enough to be used on sofas or any large rectangular furniture, allowing you to explore different positions and indulge in your desires. Place it discreetly under any mattress, adjust the straps to the desired length, and gently secure the four cuffs around your partner's wrists and ankles. Designed to fit a wide range of bed sizes, including super king, the adjustable straps offer a generous reach of up to 95 inches each. Our unique designed PU wrist and ankle cuffs are adjustable with metal buckles, the metal O-ring on the cuffs connects seamlessly to the metal clips on the nylon straps, providing a safe and stable restraint experience. Moreover, the wrist and ankle cuffs can also be used individually with or without the nylon straps.