These customizable vacuum flasks grab your attention with their incredible bullet-shaped designs which make them aesthetically pleasing and easy to carry around and store. These 18 oz. Stainless Steel Bullet Vacuum Flasks have quality features which include stainless steel material, screw-top insulation and access and a sturdy base. As promotional products, these 18 oz. Stainless Steel Bullet Vacuum Flasks have large custom imprint areas which prominently display logos and designs. They have hard plastic bottoms which make them less harsh to place on a glass table. The best part about these vacuum flasks is that they can insulate warm liquid for hours and hours. And, while they are relatively large drinkware items, they can still easily fit in small compartments and cup holders.