Trudeau"s Cocktail Strainer has a strong stainless steel construction. It has a flexible spring head that adjusts to all shaker sizes and tabs that support the strainer on the shaker. Shaker sold separately. Dishwasher safe. 5-year warranty. By Trudeau - a company that develops visionary products. Style, eloquence and innovation - Trudeau, letting you savor life"s little moments.