Specifications: Made of environmentally friendly aluminum material, it is durable and non-toxic. It will be a good helper for you to make your own coffee. The coffee dosage ring has strong and durable performance, does not rust and corrosion, smooth and feels good. Item Name: Coffee Dosage Ring Material: Aluminum Features: Durable, Coffee Maker Supply, Easy to Use Size: 8cm x 8cm x 8cm/3.15" x 3.15" x 3.15"(Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Coffee Dosage Ring