Our Large DoggieLawn grass (tray not included) is ideal for dogs under 50 lbs. The pet potty grass is 24 x 24 inches and is hydroponically grown from a farm in California. This item ships from California and is a one time purchase only. For recurring deliveries of our real grass pads for dogs, go to “Pick Your Plan” and choose your frequency. We recommend purchasing DoggieLawn's large dog potty box with this item as a tray is not included.