Preserves the flavor and aroma of opened bottle of wine for up to 2 weeks. The system uses high purity argon gas, the same gas used by wineries during production. Place the special opener into wine bottle. Fit nozzle of Preservino into stopper port and depress trigger to inject argon gas. Additional gas cartridges available. Perservino: 4-7/8" tall, stoppers, 4-5/8" tall. Each set comes with Preservino charger, two stoppers and one cartridge. Packed in a wood hinged box.