The Hario V60 innovative pour-over dripper design has a large opening at the bottom. This, with the spiral ribs on the inside and a fairly steep wall all contribute to making a great cup of pour-over cup of coffee. The classic plastic V60 has great heat retention and will last a very long time. A simple yet pleasantly effective way to make coffee. The 02 version is designed for 2 cups. The V60 can be used directly over a cup or a coffee pot or jug.