Large Capacity】: 500ml water storage capacity, no need to refill water frequently and no need to worry about your pet not having enough water to drink if you are not home all day, best choice for your pets 【Safe Material】: This automatic pet water dispenser is made of eco-friendly plastic, which is safe and non-toxic, provides your pet with a more comfortable and hygienic drinking experience 【Easy to install】: The plastic screw back makes installation on the pet cage more convenient and easy to adjust the height of the bottle 【Usage】: Unscrew the bottle cap, fill the bucket with water, tighten the cap and press the bucket onto the base. Water will fill the base and not leak 【Universal】: This hanging pet water bottle is ideal for hamsters, dutch pigs, squirrels, birds, etc. Convenient for kinds of pets to drink