The item shown in the image is a Chinese Ru Kiln ceramic tea canister (or tea caddy), widely utilized for the airtight storage of loose leaf tea, matcha, or coffee beans.
Key Characteristics & Features
Glaze Type: It features a signature Ru ware (Ru Kiln) style. This style is famous for its smooth, pale sky-blue/celadon color and fine glaze-only crackle patterns.
Design: Designed with a prominent ribbed or vertical fluted melon shape. It features prominent brownish-gold accented lines along the ridges.
Lid Construction: The top is tightly sealed using a traditional wrapped cloth element with a drawstring and a wooden decorative bead. This provides an airtight environment to preserve the freshness of dry tea leaves.