Keep Freshness This bottle stopper has good sealing properties, can keep sparkling wine, prevent loss of bubbles, and also can maintain the fresh taste of red wine. It is suitable for different kinds of wine and drinks. Silicone Cap The inside of this cap is made of food grade silica gel, which has good sealing effect and is very healthy and safe. Ideal for storing wine and drinks. Rotation Lock This bottle cap adopts rotation lock design, which is very convenient and fast. As long as the top of the bottle cap is turned to the locked position, it can be completely locked. 4 Pieces Champagne Stopper This bottle stopper adopts a new appearance design, its compact size is easier to store and suitable for many kinds of bottles. Specifications: Material: ABS and Silicone Size: 32 x 40mm Weight: 35g Color: Black The package includes: 4 x Bottle stopper