This is a tea cozy specifically designed for the popular HARIO Chacha Kyusu Maru (750ml) teapot. Knitted tightly to fit the size, it can be used without stress even with teapots that have short spouts. The two-piece design, separating the lid and body, prevents the cozy from covering the steam vent. It fastens with a button under the handle. The tea mat is integrated with the body for easy use. 100% Polyester (Exclusively for Chacha Kyusu Maru. Not compatible with Kakudo, Zen, Fukami, etc.)