Features: 1. No water leakage: Steel ball design, water can be released by lightly licking the steel ball, suitable for small pets such as hamsters, golden bears, rabbits, etc. 2. Top water filling: Just need to open the top cap of the bottle and pour water, refill the bottle without taking it out of the cage, it is convenient to add water. 3. Can be hung: With a rope and a buckle, it can be hung on the pet's cage, with good fixation, firmness and not easy to fall. 4. Durable material: Made of strong and durable plastic material, it is waterproof, harmless to animals and durable. 5. Sufficient capacity: 250ml capacity is enough for domestic pets to drink, not suitable for birds, cats or other large pets. Specification: Product name: Water Feeder Color: Blue Material: Plastic Size: About 21 cm/ 8.27 inch (L) Capacity: 250ml The package includes: 1Pc x Water Feeder 1Pc x Rope 1Pc x Snap Note: 1. Due to the light and screen difference, the item's color may be slightly different from the pictures. 2. Please allow 0.5-2 cm differences due to manual measurement. 3. If the water is not full, it will cause insufficient internal pressure and water leakage. 4. Install the faucet and tighten it. Some of the water bottles are in the shape of leather plugs, and they must be pushed tightly without leakage. Invert the water bottle with your fingers to block the water outlet, and shake it up and down several times to empty the air at the front of the water outlet. You can see bubbles emerging from the tail of the water outlet, and you can also squeeze the bottle body and squeeze out a small amount of drinking water, so that a vacuum is generated in the bottle to balance the pressure inside and outside the bottle. 5. It is normal for the installed water bottle to drip naturally in the first few minutes. When the pressure inside and outside the bottle reaches the equilibrium point, it will stop naturally.