1. 58mm Adjustable Distributor & Tamper-58mm base designed to work with most portafilters and espresso machine models including: (the dual boiler, the oracle and the orcale touch), Rancilio, La Pavoni, Hamilton Beach, ECM, La Marzocco, Rocket, Alex Duetto, Astoria and all E61 group machines.<br>2. Consistent Brew- Get consistent distribution and pressure every time making it easy to pull your perfect shot right at home, Leveling your grounds before tamping creates a uniform and consistent tamp.<br>3. Increased Adjustable Depth for 2020- Increased height adjustability to suit any depth of portafilter basket for consistent tamping pressure, makes you enjoy same great consistent cup every time. Diamond patterned grip provides a non-slip, super comfortable feel in your hand.<br>4. Dual Head- Distributor/Leveler and tamper are designed in one, double sides are available.<br>