NEW ORIGINAL DESIGN - With its built-in spring (30lb), it covers and tamps a larger surface of coffee for extraction and prevents pinched edges and water micro channeling. HANDLE-LESS DESIGN - The compact design of the Normcore Palm Tamper makes it easier to pick up and tamp away. CONTROLLED DEPTH - Tamp to exactly the same depth every time to maintain consistency between baristas. BETTER CONSISTENCY - It eliminates the need for special tamping techniques, ensuring a level tamp every time, which also results in better texture and extractions. 53.3MM DIAMETER - Designed to fit with all 54mm Portafilters baskets including Sage / Breville's Barista Express, Bambino Plus, Duo-Temp Pro, Barista Pro, Barista Touch, Infuser, and more. NEW Normocre’s The Palm Tamper comes with a 30lb spring that provides consistent tamping pressure, so as to compress the coffee grounds tightly and evenly. Durable Stainless Steel Base: CNC machined to a precise block of 304 Stainless Steel to ensure consistency in the Combo's build. The black circle rim is processed by aluminum alloy CNC. The Specifics: Materials: 304 Stainless Steel / Anodized Aluminum Height: 42cm Depth: 14mm Approximate Weight: 330g The includes: 1 - Coffee Palm Tamper (Built-in Spring) 1 - Tamper Stand (Anodized Aluminum)