Give someone you love a cute kidney magnet! "The Struggle is Renal" kidney magnets make fab organ donor and transplant awareness gifts. Treat your dialysis darling to a cute kidney. Kidney magnets for kidney doctors, transplant nurses and kidney surgery patient post-op and recovery! Our kidneys stick together through tough times, just like this super strong 2.25" kidney magnet will stick to your fridge. Made in the USA. What are kidneys and how do they work? The kidneys clean blood and make pee! These bean-shaped buddies— 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 and goes to the bladder!