When you've moved on to more advanced chemistry, it's time to reach for the GRAV® Medium Beaker. The clear glass allows you to watch as the fission downstem diffuses smoke through water for the smoothest hits. The downstem is also removable for easy cleaning. The Medium Beaker features a geometric pinch that doubles as an ice catcher and a splash guard. This piece includes a 14.5mm GRAV® Funnel Bowl so all you need to do is add about 2" of water before you get down to experimenting.