Although unused, this item has been stored at home. Thank you for your understanding. The ball-shaped tea infuser opens by squeezing the handle extending from the infuser in images 1 and 2. (Squeeze the handles from both sides as shown in images 4 and 5.) You put tea leaves inside and steep them. 【Size】 Total length: Approximately 16 cm Tea infuser: Approximately 3.5 cm (length and width) The above measurements are approximate. Thank you for your understanding.