Curved Glass Oil Burners - Items tagged as "Bong head"

Many names, one fuction

Our bong heads come in many varieties such as tiny ones, small ones, big ones, curly ones, bendy ones, coloured ones or a mix of these; we have them in stock for you. Many come with multi-buy discounts. 

All of the bong heads we sell are made from borosilicate glass. This is specially treated glass known to some as pyrex. The boring science bit, it has low thermal expansion properties; meaning it doesn't expand and contract a lot when heated and cooled. It doesn't mean it's indestructible, it does break if dropped and can crack and become weaker when you apply heat to glass. Always take care when using heat on glass.