1.58mm Backflush Inser, Backflush Filter Espresso, Stainless Steel Back Flush Blind Filter Basket Fits for Breville Gaggia Classic and other Espresso Machines Espresso Cleaning Disc. 2.You can directly replace the old or damaged one with this stainless steel backflush insert metal blind Coffee Filter,can fit perfectly into Gaggia Classic portafilter and other Espresso Machines. 3.Blind Filter is a Lightweight and good accessory for the coffee machine,backflush portafilter basket 58mm for Breville Sage8 Series 870 Stainless Steel is made of food grade premium 304 stainless steel sturdy, durable, and easy to clean 4.58mm Coffee Machine Stainless Steel Backflush Insert Metal Blind Filter Easily fits into the group handle of your coffee machine for backflushing purposes . 5.If you have any questions about the 58mm Backflush Filter Espresso, please contact us by email, we will reply you within 24 hours.