Made of 100% food plastic, safe and to use.Easy to fill & clean: Just fill up with your favorite coffee Not only , they clean up quickly with warm, soapy water.Use your favorite gourmet ground coffee by filling up the Reusable filter and placing it into the Holder in your brewer.one-piece design with stainless steel high heat resistant mesh system.Save up to 70% as compared to using portion packs, brew your favorite coffee and, at the same time reduce your carbon on the environment. and high Fits for model: for k31, k40, k44, k45, k50, k60, k66, k70, k77, k100, k135, k140, b31, b40, b44, b60, b50, b66, b70, b77, b200, b140, b30, b130, b145, b150, b155, k30, k130, k145, k155, k150.Dimensions: 37x47mm/1.46x1.85inchMouth width: 52mm/2.05inchColour:blackMaterial:plasticPackage Contents:1 x coffee filter cupOnly the above package content, other are not included.Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.