Water Tank Design: Press the water outlet tongue, and the smoke will be extinguished in one second. Safer and more practical. Large Capacity Design: It's container is deep and large enough to store many cigarette butts and keeping ash inside. Cigarette butts are free of blisters, dry in the barrel without stagnant water, easy to clean and do not smell. Drive with Peace of Mind: Cigarette ash has nowhere to escape, and the mouthpiece is designed to open the lid with just one click, making it clearly visible at night. Blocks smoke odor: Hermetically sealed, isolates smoke odor, quickly extinguishes smoke, and reduces the harm of secondhand smoke.