5”-17” adjustability

Groove requires minimal material preparation and delivers a light

Featuring innovative coaxial turbine technology

It's as easy as making a smoothie-- and a lot more fun afterward

With slits on its diffused stem that create fine bubbles for a smooth draw

GRAV® Helix™ 14.5mm Multi-Purpose Kit Mouthpiece Digital Temperature Display 5”-17” adjustabilityThe Helix Multi Purpose Kit is one of the coolest pieces Grav has ever delivered, and this is the official replacement mouthpiece. Responsible for the well known smooth rips you can achieve the multi purpose kit, this mouthpiece delivers a swirling action as you inhale, which is not only cool to look at but also delivers impressive filtration. Measuring 5 inches in length, this mouthpiece has a 14 mm female joint is a true crowd pleaser you can't miss