The Toner Collection Unit WT-5191 Waste Toner Box is specifically designed for use with Kyocera printers 406ci, 508ci, and 408ci. This unit is a genuine Kyocera product, ensuring compatibility and high-quality performance. As a waste toner box, it provides a convenient and efficient way to collect excess toner during printing, preventing waste and ensuring optimal print quality. With its unit type packaging, this product is easy to handle and store, making it a practical accessory for any Kyocera printer user.