Specification: 33x16 × 24CM Bucket Mouth Cap Installation Method: 1. Rotate the orange cover (outer cover) counterclockwise until the purple cover (inner cover) is exposed. 2. Rotate the purple cover (inner cover) counterclockwise until it can be removed. 3. Dare to lower the cover, insert the mouth stopper from bottom to top and press firmly. 4. After installing the mouth stopper, screw the cover back on, screw the inner cover first, then screw on the outer cover. 5. When you are not using water, just plug the plug into the water outlet! Thick and firm materials: ergonomic handle design, comfortable grip and convenient life Portable integrated design: conforms to fire department engineering, portable design, comfortable to hold and lifelong practicality