the solid base is made of high quality without rust and corrosion resistance With tamper, the coffee gets consistent distribution and pressure every time, eliminating key variables in espresso making and achieving even extraction, will be your best accessory for espresso. Horizontal Constant Powder CompactorBuilt in , automatic rebound, completely solves the bending/flattening problem Horizontal pressing powder vertical filling press joint and powder bowl tightly fit to make the pressing powder get balance Horizontal pressing powder to solve the pressure deviation problem pressure deviation to reduce the channel effect Great for professional baristas - Once you taste the tamped espresso from your own coffee maker, you will forget your local coffee shop and fall in love with handmade coffee. This is the highest quality tamper to date. Product parameters: Product name: Coffee tamper with scale Specifications: 53mm Applicable occasions: cafe, office, home Material: stainless steel +