ABOUT THE GRAV LABS 4" HAMMER BUBBLER WITH COLORED ACCENTSThe 4" GRAV® Hammer Bubbler is made on 32mm tubing with cross-cut downstem, colored accents, etch label and stabilizing feet. The body of the bubbler is clear while the mouthpiece, downstem, and feet are colored glass. Its cross-cut downstem diffuses smoke through water. No accessories are necessary for using this bubbler, and it functions best with approximately 0.5" of water.
This piece features sleek and clean clear glass that allows you to watch this concentrate rig or water pipe function and allows you to watch the bubbles stack as your smoke/vapor percolates. With it's beautiful colored glass accents, which gives it a unique and aesthetically appealing appearance. This pipe features a deep bowl to allow for a large amount of dry herbs or tobacco to be packed at one time. The fixed downstem is a glass tube that funnels smoke from the bowl towards the bottom of the bong. The thick glass which increases its durability and longevity.