Transparent vacuum wine stopper is made of high-quality PC, ABS and plastic material, durable, non-toxic and safe to use. Features unique trapezoidal shaped and saver pump design, just insert the wine stopper into the bottle mouth and pull the lever several times until the lever automatically rebounds, the air in the bottle is drawn out. The vacuum degree is maintained at a high standard for more effective to preserve the original flavor of wine. It is certainly an indispensable wine and beverage accessory, that is ideally used at restaurants, bars, kitchen and dining.