The Boston Tin on Tin Shaker is the perfect tool for preparing your favorite cocktails by shaking or stirring. It is made from high-quality stainless steel, making it durable, waterproof, and stylish. The shaker consists of two parts with capacities of 700 ml and 550 ml, making it large enough to create delicious cocktails for multiple people at once. The Boston Shaker is one of the most commonly used shakers by professionals.