NWOT Back lumbar support cushion with straps

Conforms to provide support to the lumbar region; Improves seating posture while providing back support and comfort Cushion has two layers of foam, the base is made of a standard foam material, while the lumbar section is made of a high quality memory foam The stabilization board secured on back of foam core prevents hammocking in sling-back wheelchairs Sealed liner protects foam core from moisture; Has a non-slip vinyl back to prevent the cushion from sliding Weight Capacity: 300 lbs; Dimensions: 20"(L) x 17"(W) x 2.5"(H)