Features: The inner cover of the lid is leak-proof. Stainless steel spout prevents bite. Clear plastic bottle, you can see the amount of water. This water dispenser design by the ball-head, it can effectively prevent leakage, effective to avoid mosquitoes and other pollution of drinking water, dust. The-ball design, the pet stick out the tongue, the steel-ball will be topped up, so that the water will be expose, no water will be poured when the steel-ball is not moved. It will not wet the pet hair. Specifications: Material: Plastic Size: Approx. Small: 80ml Middle: 125ml Large: 250ml Color: Pink, Blue, Gray Package Includes: 1pc Hamster Water Drinking Fountain note: 1: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2: Due to the differences between different monitors, the picture may not reflect the actual color of the item.