Thank you for your wonderful feedback! We are thrilled to hear that your cartridges arrived promptly, fitted easily, and are working well for you. Your satisfaction is our top priority, and it’s great to know that you are pleased with your purchase of the Compatible Twin Pack Brother TN2320 Black High Capacity Toner Cartridges. We appreciate your suggestion regarding a recyclable system for old cartridges. While we do not have a recycling facility ourselves, we coordinate with recycling partners to assist our customers. If you need help finding the nearest recycling facility, please feel free to reach out, and we will be happy to provide you with that information. If you have any further questions or need assistance, please don’t hesitate to contact us. We look forward to serving you again!