Product Description Size: pump is about 12.5 high * 7CM; The stopper is about (1.8-2.5)*3.8cm Material: ABS + Silicone How to use: 1、 Rotate the time scale record to display the date where you last opened the bottle. 2、Insert the stopper into the neck of the wine bottle. 3、Lift the handle up and down with the pump to extract air.< br /> 4、Squeeze the tip to expel air before removing the stopper. Package Includes: 1 * Wine Saving Pump + 4 * Stoppers 1. 【ECONOMICAL AND PRACTICAL】: The set includes an air pump, 4 black vacuum bottle caps. The pump removes air from the wine bottle and the rubber stopper seals the bottle. 2.【Keep wine up to 7 days】: Pump to release air from the wine bottle and the rubber stopper seals the bottle. Create a vacuum condition for wine preservation once the bottle is opened. 3.【TIME SCALLE RECORD】: The vacuum wine bottle stopper can record the date you last opened the bottle by simply pressing the Twist the ring on the cap. 4. 【EASY TO USE】: Insert the stopper into the neck of the bottle and pump to remove the air until you feel resistance. The less liquid in the bottle, the more you have to pump. Press the tip to expel air before removing the air stopper. 5.【HIGH QUALITY】: Made of high quality plastic and silicone, non-toxic, durable and sturdy, environmentally friendly and healthy to use. Stylishly designed for personal use or as a tasteful gift for a wedding, holiday, anniversary, birthday or for any wine lover.