For restaurants looking for a unique serving vessel for Irish coffee, this tall and thin glass mug is perfect. Unlike compact and short mugs, this 8.5 oz. glassware gives an impression of more generous servings. Made of thick glass and fitted with a smallish C-handle, this attractive glassware from Libbey is sold in sets of 24 under item code lg-5292. Top diameter 2.375", bottom diameter 2.75"