The tool is essential tool to make world class espresso. It is called the Weiss Distribution Technique (WDT). The thin needles break up any clumps and create a homogeneous fluffy puck before tamping. This limits channeling and ensures a better, more even extraction.
Number of needles: 8 (plus 4 in reserve) Total height: 10.3 cm Diameter of the base: 4.3 cm