The portafilter adopts bottomless design, which is helpful to observe the flow column, flow speed, color and so on. It judges the uniformity of extraction better to make the coffee more delicious. The bottomless coffee portafilter adopts E61 brewing head design that is compatible with most of binaural symmetrical 58mm commercial machines such as FAEMA E61, Expobar E61, ROYAL, etc. It can upgrade your brewing experience. Made of 304 food grade stainless steel. Rust resistance, more hygienic and durable. Safe to use. The ultrafine perforated design makes it filter coffee grounds more evenly and efficiently. The bottomless coffee portafilter adopts ergonomic design that provides comfortable grip and stable operation. Detachable design provides the convenient and quick disassembly. Easy for cleaning. Colour:As Shown Material:Stainless steel Package Contents: 1 set x bottomless portafilter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.