also ,it's good for ur health

Whether your goal is weight loss, heart health, strength, sculpting / toning, or total health and well-being, get a super-efficient, inspiring workout that pays rewards to more than just your body. The #1 leader in fitness video sales in America, Gaiam has earned more than 130 awards for quality and innovation in our workout DVDs and kits

Rock your way to a stronger core while stretching and massaging your back. Core Flex is comfortable and simple to use, and provides an efficient workout in just five minutes a day. The relaxing but highly targeted motion isolates hard-to-reach core muscle groups, including traps, lats, glutes and transverse abdominals to help prevent back pain and increase overall strength. Also works the inner and outer thighs. The sturdy aluminum frame exercises your body while gently massaging your back with five stationary rollers. An adjustable padded headrest supports your neck. Just lean back and push -- it's that simple. Easy to assemble. 27"W x 18"H. 15 lbs. Imported.