⚫️ The angle can be adjusted in 6 stages, allowing you to stretch according to your individual flexibility. ⚫ A total of 8 magnetic stones help to relax muscles from the soles of your feet. ⚫ Can be used for exercise, training, rehabilitation, etc. I haven't used it much. I think it's relatively clean, but there are scratches and dirt due to age, so please understand this if you are interested.