1. Stretching fitness master, stretching active fitness shaping foot massage. PP material, slimming and shaping, seven-level adjustment, relaxation and activation. Enjoy 15 minutes of stretching every day to relax muscles and prevent tendons 2. Seven gears are adjustable, the first gear is suitable for children or beginners. Grades 2-4 are more comfortable or have a certain foundation for middle-aged and elderly people. Gear 4-6 is suitable for professional yoga practitioners. Level 7 is suitable for fitness people to improve muscle strength 3. Ergonomic anti-slip texture, increase surface friction, barefoot combat effectiveness, massage the soles of the feet without slipping and anti-slip. The 200kg load-bearing is safe and stable, and the thickened stainless steel bracket scientific triangular structure is safe and stable without shaking 4. PP environmental protection material is safe, healthy, environmentally friendly, odorless, durable, non-deformed, easy to clean. Comfortable foam feet, lightweight soft sponge designed to protect the heel from injury during exercise 5. Injury prevention fitness! Stretch tight calves, hamstrings, hips, feet, and ankles before and after exercise to prevent injury. Improve your core strength, agility, flexibility, flexibility, reflexes, and endurance. Home, office, gym and physiotherapy clinic.