Size: Approximately 8.5cm in diameter This is a "kachikachi" (a type of clicker toy) made in the Showa era. Red Stock ★ When you press the spring on the back, it makes a "patschin" sound. Please use it carefully, pressing the spring on the back by hand, and be careful not to cut your hand. Although this is a new, unused item, there may be some scratches or rust. Thank you for your understanding. #ShowaRetro #PachiPachiPatschin 2