Needle not pointed WDT, or the Weiss Distribution Technique, can help compensate for those shortcomings by evenly distributing coffee in the portafilter to promote more even extractions and better espresso. Smooth Print ( Layer ht. 0.10mm) 9 prongs Needle replaceable Needle included Material: PLA Needle ht. : 36mm x 0.3mm Holder ht. : 56mm Color: Black |