Adjustable Distributor- base designed to work with most portafilters and espresso machine models Low profile makes it easier for barista to tamp with straight arm at 90 degrees to the counter.Evenly redistributes coffee grounds and provide a larger flat surface area for the barista to apply an even tamping pressure using the palm of the hand which helps with control and consistency Height is adjustable by it's screw mechanism (no grub screws ,shims, or allen keys required) to suit different doses or baskets Solid Food 304 Stainless Steel Base enable you to feel reassurance when you make espresso. Anti-slip Aluminum Alloy handle is for hand use. Anti-rust design , it’s pretty delicate with premium material and exquisite appearance Product Name: Coffee Cloth Powder MachineMaterial: 304 stainless steelSpecification: 51mm;52mm;53mmColor: BlackBase shape: Three slurry