About this item ONLY FITS 51MM PORTAFILTERS This espresso kit is compatible exclusively with 51mm portafilters (such as those on DeLonghi, Casabrews, Smeg, and Gevi machines). It will not fit 54mm, 58mm, or other sizes. Please measure your portafilter before ordering to ensure a proper fit Comprehensive 51mm Espresso Set: Includes KNODOS Espresso Knock Box, 51mm Espresso Distributor Tool, 51mm Spring Loaded Tamper, Magnetic WDT Espresso Tool, and Wall-Mounted Portafilter Holder Enhanced Brewing Precision: Achieve the perfect espresso shot with the adjustable depth and calibrated tamper, and distribute coffee grounds evenly with the distribution tool. Organized Workspace: Keep your coffee station tidy with the wall-mounted portafilter holder and large capacity knock box for effortless clean-up. Easy to Use: User-friendly design suitable for both beginners and experienced baristas, making it an ideal gift for coffee enthusiasts.