Castle Glassworks 7mm Demon Beaker Bong STANDING 16" TALL with a very thick 10mm base to give you max stability. Castle includes a matching colored glass downstem and bowl with their bong. 

Castle Glassorks is proudly Canadian Glass blower designing beautiful unique bongs and dab rigs with exceptional dessigns that are heat bonded. 

Height: 16″

Thickness: 7mm Tube with 10mm Base

Joint size: 19mm Downstem/14mm Bowl

Material: Borosilicate Glass

Design/Logo: Heat Bonded

Included: Colored Glass Downstem and Bowl

What is borosilicate glass?

Borosilicate glass is a type of glass that is slightly less resistant to tips and falls but is much more resistant to temperature changes, meaning this type of bong in particular would be good to last through multiple temperature shocks (outside during winter, hot-cold water) Better then normal glass would. While a bong with borosilicate glass with a thick base, and tube would be much more resistant to falls. 

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