Product Information Dual-Layer Filtration: The upgraded espresso filter basket incorporates a dual-layer design. The inner filter prevents the escape of ultra-fine particles, while the outer filter enhances extraction efficiency and supports the inner mesh. Pressurized Extraction: The VST espresso filter basket's extraction quality relies on its perforations' number and size. With 745 laser-drilled perforations, our espresso filter basket ensures a more even extraction, elevating the espresso's purity and sweetness. Durable and Long-lasting: The portafilter filter basket is constructed entirely of food-grade SUS304 stainless steel, offering corrosion and oxidation resistance. The bottom of the powder bowl is reinforced with a thickness of 0.8mm, preventing deformation under high pressure. Enhanced Coffee Flavor: The upgraded straight-sided, flat-bottom design promotes uniform and stable extraction, ensuring even interaction between the liquid and coffee grounds. Fits 2.3" (58.5 mm) coffee portafilter, Capacity: 0.5oz (15g), Recommended coffee powder: 0.5 - 0.6 oz (15 - 17g). Product Specification Brand MHW-3BOMBER Material SUS304 Capacity 15g/18g Name BEP Butterfly Basket Specification 53/54mm, 58mm Universal Weight 44g/46g