Description: DURABLE & HIGH ELASTIC - spring design, 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. FOOT PEDAL DESIGN - Widening and lengthening contoured foot pedals, provide you a comfortable exercise experience. With fixed sturdy foot pedal, elastic sit up equipment for long lasting use. ABDOMEN, ARM & CHEST EXPERCISE - Both standing and sitting using are ok. Different using method for different exercise. great for toning & strengthening abdominal, waist and legs, arms, hips, thighs and works on the tummy at the same time. LOSE Weight FITNESS EQUIPMENT - Exercise your arms, shoulders, chest, back, legs. Perfect for comprehensive fitness ,Yoga & Fitness Classes. LIGHTWEIGHT & PORTABLE - Easy to store and can be used anywhere anytime though in office or home! Specification: Material: Plastic, Metal Spring Size: 25.5 x 32cm / 10 x 12.6inch Package Includes: 1 Piece Elastic Sit Up Pull Rope Note: 1.Due to the light and screen setting difference, the item's color may be slightly different from the pictures. 2.Please allow slight dimension difference due to different manual measurement.