This is the "MagMa Dripper" in silver from Espresso Tokyo. It doesn't require paper filters and extracts even the natural oils from coffee beans. It uses a double mesh structure (600 mesh) to cut out fine particles that cause unwanted flavors. The W-shaped design, instead of the typical V-shape, allows anyone to easily achieve a stable extraction. The material is 304 stainless steel. The body size is 12.5cm in diameter x 6.0cm in height. I purchased it around June of last year, but I haven't used it and it's been stored away, so I'm putting it up for sale.