This blue Grace Glass Precooler is a perfect accessory for your bong. It helps you precool your smoke before the latter enters your mouth through your bong. It is made of an excellent heat resistant borosilicate glass. It comes with a built-in sure ground of 18.8mm diameter and a blue shower percolator ending up in a blue 3 point bowl, used for placing your tobacco. The Grace Glass logo features on the chamber.
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