This is the perfect jigger set! Both jiggers are 1 x 2 oz. The Edo Jigger has 1/2 oz, 3/4 oz and 1-1/2 oz line measures inside the jigger and the Hourglass Jigger has line markings inside for 1/3 oz, 1/2 oz, 2/3 oz and 1-1/2 oz. So you know to grab the Edo for quarter markings and the Hourglass for thirds! Easy peasy!