Dimensions: flower universal trash can charcoal filter, the diameter is 6.7 inches and the thickness is 0.4 inches. Each activated charcoal is individually packaged to maintain good adsorption properties Adsorption Effect: Our charcoal filters replacement give off the unpleasant and food odor when you put rubbish into compost pails for a quite long time. Compost pail filters can filter and absorb odor to clean and fresh air in the kitchen Material: Compost charcoal filter is made of high-quality material, and it can filter a large proportion of terrible and odor effectively. In order to keep good filtering effect, washing is not recommended Longer Lasting: The suggestion is that we should change compost bin filters every 2-3 months. The quantity is enough to use for 1 year or longer Widely To Use: activated charcoal is equipped with double-sided adhesive, you can easily stick the activated carbon on compost bin pail, trash cans, countertop bin and recycle bins size:170 x 5mm Color: Black Material: Sponge Package Contents: 12 * Can Charcoal Filters Only the above package content, other products are not included. Note: Light reflection 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.