Small & Convenient: The shape of the sprit measure is small .Considering your usage scenarios,the Jigger is engraved with capacity mark on the inside and outside.The full cup on the outside is 1 oz and 2 oz, the mark inside is: 10ml / 20ml / 30ml / 45ml. Durable Material: The sprit measure is made of sturdy 304 stainless steel,which is very suitable for hotels, families, bars and other places, including professional bartenders. Reasonable Design: Don't worry the problem of dumping,the jigger has perfect weight,which will help your fingers keep balances and measure your cocktail dose accurately . Perfect Gift: If your family and friends are drink lovers,the sprit measure is a perfect ideal for all occasions, whether for families, hotels, bars or Christmas, birthday and wedding present,especially suitable for professional bartenders.