Activated carbon odour control: activated carbon paper in the absorption core effectively neutralises unpleasant odours and ensures a fresh environment. High suction power: multi-layer core made of fluff pulp and super absorber quickly absorbs moisture and stores it safely inside. Up to a week of use: thanks to the strong absorption performance, one pad lasts up to seven days depending on use. Wide compatibility: suitable for many common cat litter systems; size 27 × 43 cm for easy replacement without messing hands. MADE IN JAPAN: 20 pieces per pack, manufactured to high Japanese quality standards from high quality materials.