DIY Murphy Bed Springs Mechanism Hardware Kit Horizontal for Twin Size BedDIY Murphy Bed Springs Mechanism Hardware Kit Horizontal for Twin Size Bed Product Features Horizontal Design Designed with a horizontal wall bed construction, it is space saving and suitable for the twin or queen sized beds. Compatible with 35. 4 47. 2 in 0. 9 1. 2 m width bed. Help extra space and create more beds for friends or guests. In addition, it is easy to clean up the bottom ash or garbage when you fold up the bed. Superior Rebound Force