Measuring 6.2 cm (2.5 inches) in length and made of heat resistant ceramic, this concentrate will fit 14.5mm or 18.8mm male joints on every waterpipes! Not only can it withstand extreme temperatures, but ceramic is also considered one of the healthiest and most flavorful ways. Ceramic is also remarkable for retaining heat, so it's possible to take more than puff from just heating it once! This ceramic concentrate is the ideal addition to everyone's shisha collection.