The Soloflex Free Weight Bench with WBV is constructed of 15-ply wood laminate molded with urethane foam. There is no weight restriction. The footprint of the bench is measures 14" x 40" x 17". The WBV motor comes already mounted on the underside of the platform. WBV has been found to produce better gains in weight lifting than weight lifting alone. Lead time currently 1-2 weeks.