Review on Silver Stainless Steel Wine Stoppers - Vacuum Bottle Sealer Plug with Inner Rubber - 1.6 x 3.7 inches by Rebecca Bright

This stopper depends on the expansion of the inner stopper. The items I received did not expand enough to be sure. Although I tried several times (locking the cork securely in the bottle with the latch up and then the latch down), the cork wobbled in the bottle, came loose without the latch and would have leaked the bottle if inserted would be back in place. Side. I expect a cork to work the same as a cork with the added benefit of being easy to insert and remove repeatedly. This test was never passed. I had to put the cork back in the bottle.