Easily open soda cans with this handy tool. This innovative Top Popper can opener simply slips on the index or middle finger between first and second knuckles. To open slide the hook on top of top popper toward you to effortlessly open cans without broken nails. A real nail saver and callus preventer. Xtra Small. Also available in small (TPS) , medium (TPM) and large (TPL).