Sirqit Copper Double Jigger Shot Glass 100% Premium Copper, Great Companion for Moscow Mules & Cocktails, 2 oz/1 oz Measure Shot Premium copper: 100% pure copper double jigger/shot glasses 1 ounce (oz.) measurement on one side/2 ounce (oz.) measurement on the other Jigger/shot glass: one jigger that has all the measurements you need for almost any drink Great match: pair with our Moscow mule copper mugs and add to your copper set