This is the MIZUNO Squat Sleigh α. It has been stored unused since purchase. When shipping, the product will be wrapped in air cushion and wrapped for waterproofing! Since it is a used item, there may be small scratches. If you are looking for perfection, we recommend purchasing from a shop. [Product Details] Quoted from the EC site With "Squat Sleigh α", you can clear three points by sitting! (1) When you sit, your thighs and the floor are naturally parallel. (2) If you put your feet firmly on the floor, your knees will not go too far forward. (3) The exquisite angle of the seat tilts the pelvis, naturally straightening the back. You can naturally perform with good form. ◎ Furthermore, it's easier than regular squats! ・It's easy because the seat supports you by pushing it up with air pressure. ・Since you do it sitting down, you don't use your knees, so it's less likely to hurt them. ◎ But it works as much as regular squats! ・When you sit, it's difficult to bend and stretch your knees, and it's difficult to use your knees. Therefore, the muscles of the thighs are used intensively, and the load does not escape easily, so you can train firmly. ★ In fact, the amount of muscle activity in the "thighs" alone exceeds that of regular squats during the ascent. ※ ★ The guideline is 10 reps per set, 3 times a day.