Stainless Steel Coffee Powder Hammer is a coffee machine accessory designed for everyday use. It applies constant pressure to coffee powder for optimal extraction. Product type: Coffee Machine & Accessories Compatibility: Coffee machines Material: Stainless steel Key feature: Ergonomic handle Color: Black Specifications: 10.3 x 5.8 (base diameter) x 4 (handle width) cm Pressure: 30 pounds Fine polishing First-class feel