A high resolution innerspring with adult-grade carbonized steel gives extra firm support and   durability.
Reinforced with a super thick border rod in a square corner design for a safer, snugger fit,   and edge to edge security.
Covered with Super tear resistant reinforced vinyl that is antibacterial treated in a
  three-ply construction for maximum durability.
Filled with extra-deep layers of polyurethane foam for surface softness.