● 4 foot mats at the bottom of the massager which keep it stable● The foot sleeves with smooth zipper are removable and washable● Automatic program and personalized program to fit your needs● Lightweight design with built-in handles for easy carrying● Remote controller provides more convenience to operate it.● Featuring 4 modes in automatic program● Designed with manual setting to adjust speed and direction● Made of ABS material foam and fabric for durability and comfort● Fits up to: US Men's Size 10 US Women's Size 12; Fits up to calf circumference: 15 inch