Bonza 12cm glass stem
15mm diameter to fit bonza hole – SUITS BONGS WITH A BONZA GROMMET, perfect glass replacement for bongs which come with a bonza metal stem.
If your bong currently takes a 14cm or 12cm bonza metal stem, this is the best fit for your bong.
Includes 14mm detachable glass cone piece
**This stem is not suitable for glass bongs which have a ground joint opening for the stem, as this does not have a ground joint – it’s a straight stem