A jigger is, basically, a miniature measuring cup that can help you nail the ratios of spirits and mixers. Once we tested them, our favorite was actually a miniature measuring cup from OXO. But for a far more standard jigger, you can't beat this one particular from Piña Barware. This https://shaker-cabinets61368.gynoblog.com/36319662/shaker-cabinets-options