The bottle bong looks like a Nalgene bottle with a water level sign on the side of the bottle and optimal functionality when filled with 400ml of water. After twisting off the cap, a small ceramic bowl inside the lid can hold your dry herbs. The downstream features a showerhead percolator with numerous holes that provide advanced water filtration as you inhale! If you want to take something inconspicuous with you , then POTO Water Bottle Bong has you covered. Bring your favorite dry herbs, and you’re all set! Specification: Height 9" Length 3.5" Showerhead Perc Easy To Clean Silicone Mouthpiece & Stem Hidden Bowl Storage