Smart Automatic Refill: Works with a gravity system, water automatically refills in the bowl as it depletes, without needing to be plugged into electricity or using batteries. Transparent and Practical Reservoir: Allows you to easily monitor the remaining water level to know when to refill. Excellent Capacity: Enough for your pet for several days, and very ideal for times when you are away from home or at work. Safe and Easy to Clean: Strong plastic materials, free from harmful substances, and easy to disassemble and wash for refilling. Stable Design: Wide base prevents spills or movement while drinking.