1.Safely stretch and increase flexibility in the foot, ankle and calf with the adjustable foot rocker. The fluid rocking motion of the calf stretcher gently and evenly stretches the foot and calf to relieve pain, improve circulation and reduce fatigue, injury and muscle strain.2.Reduce Foot and Heel Pain: Effectively reducing pain from plantar fasciitis, Achilles tendonitis, ankle strain, arch pain, and other painful conditions, the adjustable foot rocker facilitates a deep stretch of ligaments, tendons and muscles. Increasing range of motion and flexibility, the safe stretches also minimize heel, leg and back discomfort.3.Safe for use on flat surface, including hardwood and tile flooring, the adjustable foot rocker base is lined with nonslip foam. The foam padding ensures the foot rocker remains in place without sliding.4.Ergonomic Foot Plate: The an angled footplate to ensure proper foot position for safe, effective stretching and a mid-foot gap for ankle strengthening as well.5.Easy to use and clean, allowing you to operate with ease.