Glass Bong Smart Straight 45cm is a functional smoking accessory for a serious cannabis user. It features two side holes that allow air into the water chambers to make the smoke better. The water colls down the smoke, and it is easy to use. palce your buds on the bowl, preferably with a bong screen, and light them. Draw from the mouthpiece, and you will see bubbles in the water as the smoke comes up. You will experience smooth smoke and enjoy the session. Buy your Glass Bong Smart Straight 45cm from our Hollands High Webshop.