1、304 Food Grade Stainless Steel: Bottomless portafilter is made of food grade stainless steel, eco friendly and no harm, more sanitary and safer, oxidation resistant, corrosion proof rust proof and durable. 2、Solid Wood Handle: The handle of coffee portafilter is made of solid wood. Make this handle to be a comfortable handle and provides stable handling. 3、Bottomless Coffee Portafilter: Bottomless design can help observe the flow column, flow rate, color, flow column stripes, etc., thus helping you to correct and improve extraction problems to make extraction more delicious and consistent. 4、Easy To Use: The detachable design is convenient and quick to disassemble, easy to use, and easy to clean without dead corners. Stainless steel 51mm filter basket included, compatible for Delonghi stock 51mm filter basket. 5、Compatibility: This 3 ears portafilter 51mm is suitable for EC0680 EC0685 Italian machine, for EUPA, for SMAG, for SEVERIN KA5995 Germany, for Delonghi DEDICA ARTE.