"Rabbit Barware shakes up the cocktail shaker market with a patented Flip-Top mechanism that does away with the usual strainer and lid. The Rabbit Flip-Top Shaker opens and closes with the touch of a finger. Two years in development, it's a feat of hydraulic engineering applied to hi-tech sealing materials. The stainless double-wall keeps the cold inside and away from your hands. It's the first real innovation in cocktail shakers since Prohibition. Key Features and Benefits Patented Flip-Top mechanism Built in top and strainer Double wall stainless steel Dishwasher safe"