Authentic product purchased from the official Pitsole website. Brand new, unused! Pitsole M size (25cm-26cm) Color: Black New and unopened Instruction manual included Retail price: Approximately 6500 yen The insole of the health shoes that are a hot topic on social media. Just by placing it in your shoes and walking, it strengthens your lower body, improves posture, and increases skeletal muscle mass!!