Not only does this jigger have the standard marking lines (1/2 oz, 1 oz, 1 1/2 oz and 2 oz), but there is an added 1/4 oz on the smaller side and 1 1/4 and 1 3/4 oz on the larger side as well. Making this gold steal jigger the best for your most complicated and specific cocktails. 1oz smaller side and 2oz on the larger side.