Bpa free & 304 stainless seel material : reusable coffee pods are made of high quality bpa free material, food grade 304 stainless steel mess which is dishwasher safe. And with one-piece design, not only durable for use but also long-lasting and safe.Widely compatible with: k 1.0 & 2.0 brewers, and k-select, k-elite, k-compact, k-mini, k-miniplus, k-cafe, h-amilton flexbrew e3881ce, k- elite, k-select, k- classic, k- ultra,k- special edition, k- ultimate, and the k- platinum. b-reville k cup, mr-coffee k cup. Note: not compatible with k-supreme/plus/smart, k-slim.Newst reusable k cups, value set : The reusable k cups will bring great convenience to your life, you can save up a lot money from using our reusable k cups instead of the expensive regular once use k cups.Easy to use and dishwasher safe : The micro mesh holes in our reusable k cups are the perfect size to hold coffee grounds so well that even finely ground coffee grounds won't leak or stain. As a result, the flavor and aroma of your coffee will be more intense with each brew. And easily cleaned with water also dishwasher safe.Shop With Confidence If our reusable coffee filters don't meet your expectations or have compatibility issues, we've got your back