This is called Bell Jigger, because it really sounds sweet when you flip your finger against this with heavy, seamless molded jigger made from thick walled stainless steel. The double measuring cup with bell inspired design provides efficiency and accuracy when dispensing spirits and alcohol for cocktail bars and clubs; This measuring cup is engraved calibration marks inside each cup give perfect measures. The small cup has a capacity of 30ml ; The big cup holds up to 60ml ; The special feature of this bell shape is that you can balance it perfectly stable and elegant between two fingers and pour in liquid easily because it has a wide opening. This dual jigger will make your drink mixing much more consistent and exact! To preserve the quality, hand wash only! Go ahead, pick your poison. BarBox JIGGER will be around longer than your item for sure.