Sneaky Pete says:

Made from pure 3mm quartz for effective heat retention, the Fat Bottom Banger features a substantial 4.4cm deep bucket for easy use. Its flumed (Fat) bottom gives it a unique look, but more importantly this design increases the surface area and overall efficiency of the banger. Featuring a commonly used 14mm male connection, it also works well with Terp Pearls for peak efficiency and performance. Ultimate heat retention and flavorful low temperature dabs are what the Fat Bottom Banger brings to the party. Invite it to your next bash!