XL Twin to King Mattress Connecting Strap, Twin Bed Connector, XL Twin Mattress Securing Connector Convert twin beds to an almost king or XL twin beds to a King safely and easily, eliminate wiggling, and the possibility of mattresses moving apart during sleep Heavy duty webbing, will more than do the bed doubling job, clean white color to ensure the strap blends in properly with bedding materials 27 foot long strap provides ample room for holding together two XL twins to create a King; great twin bed joiner kingmaker! Great for guests you can easily convert two singles to a king. . and back, without hassle of high costs Wraps around two xl twins, and tightened down securely with heavy duty no slip buckle, and you are in king bed heaven! Or on twins for almost the king?? Is that the regent?