Arm and Leg Restraint kit - Adjustable Wrist and Ankle Cuff - fit Mattress - Strap on Under The Bed or Mattress.

The straps extend pretty far and can be adjusted to smaller sizes. The cuffs are soft and nicely made. My only issue is one of the clasps for the cuff hardly opens. I got it to clear the ring diameter after a bit of work, but not bad for the price.

The mask and cuffs are super soft and comfortable. Easy to slide under our king mattress. Nicely made, no problems at all. Would definitely recommend!