This affordable Basic Bubbler by Grav Labs is a such a mini 5 inch powerhouse - proving that good things do come in small packages. Its sleek design is excellent for smooth, filtered hits. Made from high-grade borosilicate glass, the Basic Bubbler by Grav Labs Bubbler features a built-in bowl, two feet to keep the piece's base sturdy, and Grav Lab’s patented ‘x’ cut style slit fixed downstem. The Basic Bubbler's slit downstems guarantees a smooth hit. Highly functional, the Basic Bubbler by Grav Labs is a perfect bubbler for anyone that wants a portable, lasting, simple, water ready handpipe.