Let your kidney keep your keys together. The kidneys — most folks have two — clean and process your blood, pick out the waste and return fresh blood to your bloodstream. Extra water pulled from the blood becomes pee! The engraved back of the keychain and cardboard display both say: "Kidney: When Urine Love." Back of the packaging includes info about these renal powerhouses so you can learn a little something and keep your keys organized. Zinc alloy with soft enamel, polybagged. Kidney part of keychain measures 2" x 1.5". Designed in the US, made in China. I Heart Guts happy organs put a smile on your face and smarts in your brain! Our adorable organs make the perfect gift for everything from a broken heart to a tummy ache. Get your feet wet in anatomy or bone up on your physiology with our nerdy plush toys! I Heart Guts is the brainchild of an anatomically obsessed illustrator who loves internal organs and all they do. Founded in 2005, our bare-bones family operation strives to offer plush organs with love, style and geeky puns. I Heart Guts plush organs were named Best of Toy Fair by Popular Science magazine in 2014.