Thickened compost bin filters: in thickness of 10mm, it does a good job to absorb odorsEco-friendly material: made of premium activated charcoal, the filter should be changed every 3 to 4 monthes and not be rinsedThat fits for most compost pails and ceramic compost binsFiltering effect: place the filters firmly into lids, then the thickened filters start to work and can make you live in a clean and nice kitchenQuantity: each pack includes 6 pieces of compost bin replacement filters, enough for you to use and replaceNote:Filter contain charcoal, please do not rinse.Size:17cm in diameter and 10mm in thicknessMaterial:Activated carbonColour:blackPackage Contents:6 * Round Compost Bin FiltersOnly the above package content, other products are not included.Note: Light 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.