About This NOTE: Does NOT activate grinder on Breville Barista, Can NOT activate a Breville machine, Dose NOT fit Breville machine Stainless Steel Material - Made of high‑quality stainless steel, durability and corrosion resistance. Non‑toxic and harmless, can be directly in contact with food, rust‑proof and durable. Sleek, simple and modern accessory to enhance your espresso experience Coffee Dosing Cup - This custom designed 51mm dosing cup is developed to work specifically with 58mm portafilters. Small and exquisite, suitable for espresso machines. Allows for easy weighing of ground coffee while being an efficient and tidy transfer between grinder and portafilter Reduces the Mess and No More Waste - The versatility of this cup makes for accurate weighing of grounds and easy transfer between grinder and portafilter. Great for coffee grinding, avoid spillages, no more waste your coffee with this dosing cup, it's a great little addition, saves coffee and reduces mess Improve Your Workflow - Easy to use, just use it to measure beans, add to the hopper, grind directly into this dosing cup, and the tab activates the coffee machine grinder. Your workflow is definitely much cleaner and faster with this tool Overview Brand : TQEONKL Capacity : 3.11 ounces Color : Black Product Dimensions : 1.65"D x 2"W x 2.56"H Special Feature : Portable