Push-Up Blocks (pair) Diathermy Deep Heat Units Includes Pump * Iindividual bladders Style:1 Pair (Left & Right) Traction Kits-Accessories 401924 7 to 10 inches

Push Up Blocks (pair) Diathermy Deep Heat Units Includes Pump * Iindividual bladders Style:1 Pair (Left & Right) Traction Kits Accessories 401924 7 to 10 inches Includes Pump * Iindividual bladders alternate every 10 minutes to provide a comfortable pressure relieving seating surface * Zippered non skid stretch knit cover is anti microbial and meets California Tech Bulletin #117 for fire retardancy * Dimensions: 18 x 16 x 3 1 4 * Weight: 4 Lbs 5 * White * Please note that a counterweight is available (model 3P7039X ) for the 350# models only which were made sometime before April '04 * There is no counterweight available for the upgraded 400 lb