[the latest cup cover design is highly compatible with for Keurig 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 the following brewers: for Keurig elite, Keurig select, Keurig select Keurig select, Keurig, Keurig ultra classic, Keurig special edition, Keurig ultimate and Keurig platinum.[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, we can save up to 80% of the money. The refillable K cup has a tight cover to ensure that the 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 the coffee grounds you need into the reusable K cup, pour the coffee grounds into the trash can after use, and clean the reusable K cup filter with water. In addition, these refillable single K cups are safe for the dishwashercolour: blackMaterial: plastic + metalPackage Contents:6 x Coffee accessoriesOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.