Approximate size of product when filled with air and water 15×8×5 inches It comes with an adapter to use when injecting air, a pump, and pigments (green, red, and blue) to use when changing the color of the water. product manual 1.Open the water inlet: Open the water inlet lid of the product counterclockwise. 2.Fill Water: Fill the product with water through the water inlet. Water can be pumped using a faucet or bottle, and adjust the exact amount to scale. 3.Color change to ink: Drop the ink of the desired color into a small amount of water and shake the product so that the ink mixes evenly with the water. 4.Fill air: After filling the product with water, fill the product with air using the pump provided. After connecting the pump to the air inlet, fill it with air as needed. 5. Seal the water inlet: After sufficient air is injected, turn the water inlet lid clockwise to close and seal it. 6.Clean and store after training: Empty the water bag after use, rinse with clean water and dry if ink remains. Remove air and fold it flat to store. Caution: Make sure water and air are properly sealed before use, and be careful not to place the product strongly on the floor.