Thank you for looking! I used these indoors about twice. They were very light and easy to wear, but the size didn't fit, so I'm selling them. 23 cm Purchased in June 2024 for about 5000 yen. 【Fatigue-resistant & Lightweight】 With an air cushion and excellent shock absorption, the cushioning provides great impact absorption and is very easy to walk in, reducing fatigue. How about for indoor wear or walking? I don't think there are any noticeable stains or scratches, but they are used items, so please consider this if you don't mind. Thank you very much. They will be shipped via a simple, budget-friendly method.