Made of upgraded high-quality plastic and spring, much stronger than the old one, durable and difficult to crack, the best choice for building up your muscles [Abdomen, Arm & Chest Exercise]: Both standing and sitting using is ok. Different using methods for different exercises. Ideal for toning & strengthening stomach, waist, and legs, arms, hips, thighs, and works on the tummy at the same time [Lose Fat, Shape your Body]: This resistance training tool workouts your arms, tummy, shoulders, legs, and butt. It is not the only way to lose your fat by exercising with our tummy trimmer but also a way to shape your body [Lightweight & Portable] Size: 11.8-inch x 10.2 inches (L x W), Weight: 742g. Portable and lightweight, easy to store and can be used anywhere anytime though in office Package Includes: 1 x Pedal Tummy Trimmer