1. Safe Material: Food-grade silicone hose, high-density ABS plastic shell. 2. USB Powered: Rechargeable battery, can pump 4-6 gallons of water when fully charged. 3. Fits All Standard Size Bottles: Standard neck size is 2.16 inches (5.5 cm), compatible with 2, 3, 4, 5 gallon and other standard size water bottles. 4. Extensive Use: Portable device for both indoor and outdoor use, such as office, home, kitchen, camping, picnics, and outdoor activities. 5. The water pipe is approximately 0.5 meters long, easily reaching the bottom of the bottle. Instructions: 1. Connect the silicone tube and stainless steel tube. 2. Insert the silicone hose into the bottle. Then secure the pump. 3. Press the button to dispense water. 4. Press the button again to stop dispensing. 5. Charge using the Micro-USB cable when the battery is low. Color: Beige-Yellow Material: Silica gel, ABS, PC Size: 8.5 x 12.5 cm Package Contents: 1 x Water Dispenser Pump Only the above package content; other items are not included. Note: Light reflection and different display settings may cause slight variations in color between the image and the actual item. Measurement may vary by +/- 1-3 cm.