Mecanismo de resorte: tracción de tobillo y pantorrilla con reposapiés, relajación de los músculos del talón, pie y pantorrilla, y estiramiento y relajación muscular.

Ergonomic design: The gentle swing of the pedal oscillator stretches the feet evenly, relaxes tense muscles in the ankles and calves, promotes blood circulation, and is fully prepared for movement. Furthermore, this leg extender separates the calf muscles, tendons, and ligaments for effective deep stretching, which reduces the risk of injury. Durable non-slip: The anti-slip rubber strip on the bottom of the shoe ensures that the shoe does not slip when used on any surface. The raised heel plate holds the heel in position, and an anti-slip pattern prevents the foot from sliding during use. Durable and portable: Robust and lightweight design for easy transport to a playing field, office, or gym.