Coravin Model Two Wine Preservation System, Graphite Needle - Teflon coated stainless steel ; Best-in-class wine system keeps your wine safe from oxidation, allowing it to continue to age naturally. Thin wall needle pours 20 percent faster than the original needle and locks into place to prevent leaks Non-coring, faster pouring needle allows access to wine without cork damage, allowing it to reseal and continue protecting the wine Argon gas, an inert gas used in the wine-making process, protects the remaining wine from oxidation. Proprietary capsule cap creates a tight seal between capsule and product Press the trigger to pressurize the bottle, release to let wine pour out. Ergonomic handle and angled spout make wine pouring easy Bottle clamp with grips makes it easy to attach, providing a secure hold on the bottle, ensuring the system remains stable while pouring. Fits on a variety of sized standard bottles Device: stainless steel, zinc, black ABS plastic, mixed polycarbonate, fiberglass reinforced nylon, capsules: capsule - recyclable steel; seal - synthetic rubber; cap - fiberglass reinforced nylon, needle: needle - non stick coated, stainless steel; grip - ABS plastic; seal - synthetic rubber. Weight: .98 lbs (with capsule installed)