I purchased this from the official Amazon online store last year. I used it in a hamster cage for about a month. My hamster didn't seem to like it, so it was hardly used. I hand-washed it twice with a neutral detergent and then stored it in a cool, dark place. There are some minor scratches and dirt on the inside of the wheel. Please be aware of this before purchasing. There is no major damage, so I think it can still be used for a long time. [Anonymous delivery, free shipping.] ★ This item will be shipped via "Eco-Mercari Delivery" due to shipping costs. Please be sure to allow "Eco-Mercari Delivery" (specify where to leave the package) on the purchase screen. ★ I plan to carefully pack it with bubble wrap before shipping. - Brand: GEX - Product Name: Harmony Wheel 30 - Size: 30cm - Features: Quiet design - Set Contents: Wheel, stand, sheet, fixing parts