BRNT Designs makes pure glass accessories, crafted for your enjoyment. This ceramic bowl is to be used with your BRNT Polygon Water Pipe whether you need a replacement or just want an extra one on hand. *Please Note: This is a replacement unit - each Polygon comes with one bowl. BRNT Bowl Features: Size: mm Diffusing downstem for cooler and smoother hits Silicone seal for an airtight fit What's in the Box: 1x - BRNT Polygon Ceramic Bowl with Silicone Seal