The Stainless Steel Kalita Wave Dripper 155 is thoughtfully crafted for achieving a strong robust coffee taste without the harsh bitter bite for all your pour-over coffee brews. Its unique contact surface makes it so that the filter does not come into contact with the sides of the dripper, hence the wave design. When hot water is poured it does not accumulate but quickly drips to the Wave Zone avoiding bitterness and the result is a solid brew. The Kalita Wave is easy to use and will delight baristas and beginners alike.