Made In The USA Handcrafted From Medical-Grade Borosilicate Glass Packaged In A Sleek Collector's Case 7 mm Thick Wide Base For Supreme Stability Ground Glass Connection Handcrafted from durable medical-grade borosilicate glass, the Higher Standards Heavy Duty Beaker is a water pipe engineered to rip with maximum filtration. With a wide base for supreme stability and a ground-glass connection for an airtight seal, the Heavy Duty Beaker has high thermal resistance that will withstand all temperature variances. Slits on its diffused downstem create fine bubbles during use, making for smooth delivery of pure, water-cooled smoke. A 14 mm female downstem seats a beautiful Higher Standards bowl for delicious low temperature flavor. Each Heavy Duty Beaker is sold in a reusable collector's case for safe storage and transport, and includes a custom ice mold for extra smooth rips.