i recently recieved a molino glass bong with the glass precooler...its 45 cm high and i think it was 4.2 mm thick...anyways it hits hard and i love the carb on the back b/c i'd hate to have anybody fuckup my bong pulling the slide out while clearing it...hits amazing...oh and it was only 120$...although i didnt buy it...it was a birthday present from my girlfriend...lets just say after this its hard to go back to a bowl