Features: brand new and high quality Active carbon plus absorbent cotton can effectively filter the impurities and get cleaner water for your pets. Package inclueds 8pcs replacement filters. Suitable for flower pet fountain waterer, which allows kitten and dog to drink the water inside. The filter pad can also stop the hair and debris from getting into the water and prevent some problems for your kitty or dog. The filtration pad is easy and simple to use. Just put it inside the fountain to replace the old one and then it is done. Specifications: Material: Activated Carbon, Resin, Non-Woven Fabric Color: White Size (Approx.): Approx.10x10.5x1.9cm/3.94x4.13x0.75in, Middle Hole Diameter Approx.1.9cm/0.75in Weight: Approx.208g Package Includes: 8 Pieces Pet Fountain Filters note: 1.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!