(STR915) Package of 1000. These corks are 15/16 inches in diameter and 1-1/2 inches long and are chamfered on both ends for easier insertion. These corks will give a good tight fit with a standard fifth size wine bottle that has a cork finish or has a 3/4 inch opening. This is the size we recommend when using our Gilda Compression Corker, Floor Model Corker or any corker that utilizes a compressing iris mechanism.