These are characterized by their cute shape, but they produce the same sound as regular castanets. I also have other animal castanets (elephant, panda, pig, frog) for sale! If you buy 2, they're 550 yen, and if you buy 3, they're 800 yen! Due to shipping constraints, I will pack the castanets with a slight amount of pressure to keep the thickness under 3cm. Thank you for your understanding.