Made of natural polymer adhesive material, strong adsorption effect, can solve the problem of bad odors Cuttable size fits perfectly to any toilet Specifications: Name: Cat Toilet Filter Material: Activated Carbon Fiber Product Size: about 15.5x16.5x1cm/6.1x6.5x0.39" Thickness: about 1cm/0.39" Weight: 1pc: about 16g 4pcs: about 75g 6pcs: about 120g Listing 1:4 * Cat Toilet Filter or Packing List 2: 6 * Cat Toilet Filters