Ethan + Ashe Matte Black, Copper, Stainless Steel Koolhaus Cocktail ShakerIntroducing the sleek and stunning KOOLHAUS Shaker. Crafted with impeccable precision, each shaker is a testament to craftsmanship, aesthetics, and functionality, ensuring that every cocktail you create is a masterpiece. Features Cold Drinks, Not Hands The double wall, vacuum insulated body prevents hands from warming drinks, protects hands from the cold, and stops exterior condensation completely. Leak Proof, Sealed Lid Our bar shaker leak proof top