Contents: 4 pieces Material: 100% cotton Dimension: size 4 (12 cm x 19 cm) Features: Replace 100% disposable coffee filters, reusable, vegan Io Nova coffee filters replace conventional single-use coffee filters and thus avoid the creation of single-use waste. The strength of your coffee can be influenced, on the one hand, by different amounts and degrees of grinding of the coffee powder. On the other hand, the fabric of the coffee filters was designed in such a way that the processing time of the coffee is neither too long nor too short. If you still want to enjoy your coffee a bit more, you can put several filters on top of each other. Our reusable filters can be used both in filter coffee machines and in conventional hand filters. The Io Nova coffee filters are size 4, which replaces standard paper filters in size 4 or in the case of Melitta 1 x 4.