Product Description Size: 27*4.5*35.5CM Color: black, blue, purple Material: spring steel Package content: * Rally 1.Durable & High Elastic Dual spring design, much more strong, durable and not easy to deform. Surface of spring is smoother and the rust prevention ability is strengthened. Best choice for building up your muscles. 2.Upgraded Foot Pedal Design Widening and lengthening contoured foot pedals, provide you a comfortable exercise experience. With fixed sturdy foot pedal interior design, Equipment featured with long lasting use. 3.Abdomen, Core, Arm, Chest, Leg ExerciseBoth standing and sitting using are ok. Different using method for different exercise. Ideal for toning & strengthening stomach, waist and legs, arms, hips, thighs and works on the tummy at the same time. 4.Lose Weight, Shape your body This resistance training tool workouts your arms, tummy, shoulders, legs and butt. It is not only way to lose your fat by exercising with our tummy trimmer but also a way to shape your body. 5.Note: The strength of the tensioner is within 1 meter of the stretched length, and the stretched length of more than 1 meter may cause the spring to deform! It is not recommended to stretch more than 1 meter, please be aware!