This is a hinged protective cover specifically designed for the Quad Cortex, made from 2mm thick smoke black acrylic. The subdued smoke black color complements the unit, making it ideal for those who want a unified black aesthetic or wish to change the appearance. It features acrylic hinges from Acrysun, incorporating metal shafts for high durability and smooth opening and closing. The design allows you to press the power button without opening the cover. A cleaning cloth and transparent, residue-free double-sided tape are included. *Note: Although it is black, the material is translucent, so the LED lights of the footswitches remain visible even when the cover is on.* **Inspection and Replacement Policy:** We generally ship the product with a protective film attached. However, in rare cases, imperfections such as laser-induced hazing may be present that are not visible through the film. If you discover any defects after removing the film, we will replace the item as an initial defect. Please contact us before leaving a review. **Important Notice:** This product has been a popular choice for many customers since its launch. We continue to maintain the highest standards of quality and customer service. Recently, we identified a seller of similar products who used multiple accounts to purchase our product solely for the purpose of leaving negative reviews. These reviews have already been removed by the Mercari administration as malicious activity. We will continue to take strict action against such harassment. We are committed to honest and reliable operations, so please feel confident in your purchase.