I purchased this on Amazon and used it for about two months, so there may be some signs of use. The keyboard was used with a cover on it, so it's relatively clean. I'm selling it because I don't have much opportunity to use it. Retail price was around 14,000 yen. The following is the description from Amazon: [Compatible with four models]: iPad 9th/8th/7th generation 10.2 (2021/2020/2019 models: A2602, A2603, A2604, A2605, A2270, A2428, A2429, A2430, A2197, A2198, A2199, A2200) *iPad Air3 10.5 (2019 model: A2152, A2123, A2153) *iPad Pro 10.5 (2017 model: A1701, A1709) compatible. (Please note: The product does not include a pen) [Excellent durability and elasticity]: The back uses a flexible honeycomb 3D structure, which has excellent heat dissipation and extends battery life. The exterior is made of high-quality materials, tailored to the iPad, providing full protection and preventing wear and scratches. The holes are specially processed to protect the iPad's power and volume buttons. [With pen holder]: Comes with a pen holder for storage and a pen stand function for temporary placement, making it convenient to use and store, and also providing protection to prevent the pen from being lost. [Fashion design]: Dedicated shortcuts are arranged, so you can enjoy the convenience of searching the web or adjusting the brightness with the push of a button. In addition, the keyboard is compatible with tablets and smartphones with Android, iOS, or Windows systems.