1、Stainless Steel: 58mm bottomless portafilter is made of stainless steel, eco friendly and no harm, more sanitary and safer, oxidation resistant, corrosionproof rust proof and durable. 2、Wood Handle: The handle of coffee portafilter is made of black rosewood. It offers a comfortable grip and stable operation. 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、Efficient Extraction: Ultrafine filter extract coffee more mellow, promoting a more even and efficient filtration of coffee grounds, resulting in a superior cup of coffee. 5、Easy To Clean: The detachable design is convenient and quick to disassemble, easy to use, and easy to clean without dead corners.