MALOUF Structures Bolt-on Metal Bed Rail System with Wire Support - Twin/Full Sturdy support for twin and full size beds Universal connection plates accommodate most bolt-on headboards and footboards Two parallel cross wires for support without bed slats Designed for use with a box spring or bunkie board Includes two 1.5" x 1.5" x 78" side rails with support wires; 3-year U.S. warranty