The InsideOut Collection of barware turns the common knowledge of what a drinking glass should look like on its head. In AMT's collection of barware, the well known and oftentimes iconic shapes of glasses are hidden behind a neutral and discreet outer shape, unassuming and simple. But once you pour the drink, the glass' inner identity appears creating an unusual and highly fascinating effect. Besides the visual beauty, the double-walled glass keeps your martini cold! Hand made and holds 4.5 ounces and a couple olives. And because drinking a Martini all alone is a dull thing and shouldn't be allowed, these comes in pairs.