UNIVERSAL FIT - Designed to fit a variety of wine and liquor bottle openings for versatile use KEEPS WINE FRESH - Preserves flavor and aroma for up to one week after opening PREMIUM CONSTRUCTION - Crafted from durable stainless steel and food-safe silicone SLEEK AND FUNCTIONAL DESIGN - Low-profile look with reliable airtight seal EASY TO USE AND CLEAN - Simple insert-and-seal design, easy to remove and rinse