About this item 【Compatibility】 This 54mm Bottomless (Naked) Portafilter is designed to fit baskets of 54mm Breville Barista Pro and Breville Barista Espresso Machine models. 【Filter Basket Included】Stainless steel 54mm filter basket included and compatible with Breville's stock 54mm filter basket 【Fix Espresso Channeling】the bottomless design can help observed the flow column, flow rate, color, flow column stripes, etc., find the defects and errors before extraction, and better judge the uniformity of extraction, thereby making it more delicious and more consistent Espresso 【304 Food Grade stainless steel】The Bottomless Portafilter is made of food-grade Stainless Steel, eco-friendly and non-toxic, more sanitary and safer. 【Smooth Walnut Handle】With Ergonomic Design solid walnut handle for a comfortable grip and provides stable handling.