Features: 1STRONG COMPATIBILITY: This 2 ear 51mm portafilter is suitable for Delonghi EC0310 and most coffee machines with two ear handles. 2ATTACHED FILTER BASKET: Stainless steel 51mm filter basket compatible with for Delonghi 51mm filter basket. 3EXTRACTION IMPROVEMENT: Bottomless design helps to observe flow column flow rate color flow column stripes etc. identify defects and errors before extraction better judge the uniformity of extraction and thus make the extraction of coffee more delicious and consistent. 4304 FOOD GRADE STAINLESS STEEL MATERIAL: The bottomless powder bowl is made of food grade stainless steel which is environmentally friendly non toxic and safe. The coffee portafilter has the characteristics of oxidation resistance corrosion resistance rust prevention and durability. 5DETACHABLE AND EASY TO CLEAN: The detachable design is convenient and fast to disassemble easy to use and clean without dead corners. Specification: Item Type: PortafilterMaterial: Stainless SteelApplicable Model: Suitable for Delong EC0310 and most coffee machines with two ear handlesWeight: Approx. 345 to 355g / 12.2 to 12.5oz Package List: 1 xPortafilter