Usage: 1. Add water slowly along the gap of the cup wall until the wall is full of water, and the water level should be lower than the edge of the outer barrel 2. Press the inner cylinder hard to make sure there is no water at the bottom of the ice bucket (Note: if there is water at the bottom, the inner barrel will float up) 3. Cover and place the ice bucket horizontally in the refrigerator for more than 4 hours 4. Take out the ice bucket, pinch and squeeze the ice bucket with water to drop the ice