Oil and Vinegar Glass BottleLDG WARE The innovative design of these stylish flasks eliminates this problem, by allowing the flow of liquids to be finely adjusted whilst pouring. Dressing food with oil and vinegar can be problematic, with their differing viscosities often leading to too much or too little of each being dispensed. Simply depress the large button on each cap to control the flow as you pour pressing more for thicker liquids, such as oil, and less for thinner, such