Minimise coffee waste and improve the accuracy of your dose. The Coffee Accessories Metallic Dosing Ring snaps onto your 58mm portafilter with a magnet so you get every bit of that precious coffee when you grind directly into the basket. It also keeps your workspace clean so you can focus on brewing. Coffee Accessories Dosing Ring Features Reduces coffee waste - Grind straight into the basket without mess or waste. Improves efficiency - The accurate dosing and clean workspace lets you focus on the next steps ahead. Magnetic Attachment - Designed with a magnet, this dosing ring snaps securely on top of your 58mm portafilter. This product includes: 1 x Coffee Accessories Dosing Ring Specifications Materials Stainless steel, magnet Dimensions 58.0mm (diameter) Colours Black, Stainless Steel, Rose Gold, Gold Recommended Additions Coffee Accessories Tamper Artisan barista 58mm Distributor Rhinowares Bench Tamp Mat