The perfect product for all chemists with a sense of humor! The witty saying refers to the periodic table knowledge of the wearer and is a clever allusion to their field of expertise. Do you know a chemist? Make him happy with this product. With this product you can show that chemistry can be fun as well as serious. It is perfect for everyday use, but also for conferences and professional events. So if you want to spread good humor, wear it yourself. This I tell Mum Jokes periodically when I’m in my element product is created by klamottn.