12 Argon Gas Capsules 1 Standard Needle Capsules are Compatible with All Consumer Coravin Systems Coravin Capsules power all Coravin Wine Preservation Systems. Coravin capsules preserve the life and flavor of your wine like no other. Coravin needles are specially designed to pierce through natural or agglomerated cork and allow you to pour wine without opening the bottle. Included: (12) Argon gas capsule cups (1) Standard needle Features: Coravin capsules are filled with pure Argon gas that pressurizes the bottle to allow wine to flow through the needle, then blankets the remaining wine once the system is removed. Capsules are compatible with all consumer Coravin systems. All Coravin needles are made of stainless steel with a non-stick coating, providing durability and easy insertion for hundreds of pours. Not compatible with the Pivot? Wine Preservation System.