The reusable K Cups by lvnasst are specifically designed for Keurig coffee makers, both 1.0 and 2.0 models. These refillable K Cups are a great alternative for eco-conscious coffee lovers who want to reduce their environmental impact. Made with high-quality materials, these K Cups are durable and easy to use, providing a convenient way to enjoy your favorite coffee beverages while saving money in the long run. Perfect for those looking for a convenient and sustainable coffee solution, these reusable K Cups are a must-have for any Keurig coffee maker owner.