40 Pads EZ Cat Litter Box Pads for Cat Litter Box Systems 16.9 x 11.4" Trays FREE SAMPLES EZ Cat Litter Box Pads to fit Purinas Tidy Cats Breeze Litter Box System Holds up to 500 ML of liquid-about a weeks worth of urine and lasts up to 1 week per cat Absorbs and controls odor for up to 1 week for 1 cat, 2-4 days for 3-4 cats-Pad can be rotated to extend usage Non leaking plastic backing and quilted surface increases absorption FREE SAMPLE by Request! - FREE SHIPPING