Essential bartending tool that combines a leak‑proof stopper, built‑in wine aeration, and a calibrated pourer — designed to improve consistency, reduce waste, and enhance wine aroma. Key benefits Precise dosing: the pourer uses a calibrated ball bearing mechanism to deliver consistent 30 ml portions for repeatable cocktails and measured service. Better flavor and aroma: the integrated aeration feature gently exposes wine to air as it pours, improving fragrance and mouthfeel without extra steps. Clean, spill‑ service: the leak‑proof stopper prevents drips and preserves remaining bottle contents between pours. Durable, service‑grade construction: made from corrosion‑resistant 304 stainless steel for reliable performance in busy bars or at home. Features and performance Function: combines pourer, stopper, and aerator into a single bartending accessory for streamlined service. Material: corrosion‑resistant 304 stainless steel for long‑term durability and food‑safe contact. Performance: calibrated ball bearing mechanism ensures smooth, accurate 30 ml pours every time. Reliability: leak‑proof design minimizes spills and preserves open bottles. Use scenarios Professional bars and restaurants: maintain consistent drink recipes and speed service during peak shifts. Upscale dinner parties: deliver measured pours and enhanced wine aroma to improve guest tasting experiences. Casual gatherings and outdoor events: control portions, avoid drips, and keep opened bottles fresher between servings. What it solves Eliminates inconsistent ‑pouring and recipe variation. Reduces waste and overpouring for better cost control. Enhances the wine drinking experience without separate aeration steps. Keeps service tidy and bottles sealed when not in use. Specifications (as provided) Calibrated ball bearing pourer delivering 30 ml portions. Leak‑proof bottle stopper with built‑in wine aeration. Constructed from corrosion‑resistant 304 stainless steel. Simple to integrate into bar service or home use, this accessory brings precision, protection, and improved wine aroma to every pour.