[the latest cup cover design is highly compatible with for 2.0 and 1.0]: K200, k250, k300, k350, K360, k400, k450, k460, K500, K550, k560, K15, K31, K40, K44, K45, K50, K60, K66, K70, k77, K80, k100, B31, b40, b40, b40, B50, B70, B77, B100, B140, B200 and following : for elite, select, select select, , ultra classic, special edition, ultimate and . [stronger and tighter]: the reusable K cup is made of high-quality 304 metal mesh and Plastic bottom. This reusable K cup has a strong structure and tight cover, and you will taste delicious coffee as never before! [environment and Economy]: using K cup can be reused instead of more expensive ordinary K cup, save up to 80% of money. The refillable K cup has a tight cover to that reusable K cup does not leak and keep your home clean. [easy to use and clean]: the reusable K cup is very easy to use. Just pour coffee grounds you need into reusable K cup, pour coffee grounds into trash can after use, and clean reusable K cup filter with water. In addition, these refillable single K cups are safe for dishwasher colour: black Material: plastic + metal Package Contents: 6 x Coffee accessories Only above package content, other products are not included. Note: Light and different displays may cause color of item in picture a little different from real thing. The measurement allowed error is +/- 1-3cm.