This foldable push-up board is color coded to provide a variety of efficient push-up positions. Our home workout equipment is specially designed to target different muscle groups chest, shoulders, triceps, biceps and back while working your core. to maximize your full body workout Highlights : Automatic counting function and time function to help you constantly challenge system yourself burn out your fat to the greatest extent.and develop iron chest muscles. Counter uses 2 pcs AAA batteries Composition : Acrylonitrile Butadiene Styrene