Size: Air Pump: 8.3*7*14.5cm/3.3*2.8*5.7in Stopper: 3.5*1.8* 4cm/1.4*0.7*1.6in Material: Stainless Steel + Silicone Package Included: 1 x Wine Saver Pump + 4 x Bottle Caps (All Reusable) Note: Vacuum preservation corks heat deformation. Therefore, do not use hot water. They cannot be placed near heat sources. 1.Material: This vacuum pump is made of stainless steel and food grade silicone and comes with 4 reusable plugs. Vacuum pump creates an air vacuum that protects the wine, protects against bacterial and oxidation processes, and keeps the wine with natural, fresh smell and taste for up to 14-15 days after opening the bottle. 2.Smart Design: The pump handle is ergonomically designed to make pumping easy and avoid finger pinching. 3.Easy to Use: Insert the wine stopper, pump out the air from the slope of the bottle to the pump remove and secure the plug. Pull up the inner tab to release the stopper. 4.Function: the pump is quite small, it is good for travel, it can be used for various events, wine tasting, festivals, wine bars, restaurants, houses etc. 5. WINE SAVER VACUUM PUMP SET Includes 1 x Wine Saver Vacuum Pump and 4 x Vacuum Bottle Caps (all reusable). With enough caps, you can enjoy different types of wine at the same time and don&39;t worry about the wine going bad. With the gift box, it is a great wine gift for your friends, family and wine lovers.