Design Stepped Aperture:Features stepped aperture design to regulate water , preventing pooling for balanced extraction. Compatibility for V-shape, for , Flat-bottom:Versatile design fits for V-shape, for , and flat-bottom , enhancing its adaptability. Performance Uniformity & Rate Stability:31 dispersion holes in a concentric layout deliver uniform water , ensuring stable brewing. Material:Crafted from, this dripper ensures durability and resists high temperatures, perfect for baristas. Adjustability Stepless Height:Stepless height adjustment allows for optimal extraction with any bean, filter, or taste preference.