Available in rigid and folding types. Wooden backboards are 3/4" weatherproof Marine Plywood finished with two coats of clear varnish. Incorporate large hand cut-outs for easy handling. It has 3/4" runners on bottom for ease in lifting. Four nylon patient restrainer straps are standard equipment on full length and folding models. Two straps on the half length. Also available is folding light weight aluminum model.