Let espresso lovers make aromatic, less bitter coffee .Compound Chill is a technique that brightens the flavor by flowing espresso over a metal stone. Making this technique easier than ever to achieve or in a specialty coffee shop.Simply freeze in the freezer for 2-4 hours and place it just below the handle of your espresso cup. Start the coffee machine and let the coffee flow smoothly over the sphere.Also offers a quick chill alternative without waiting or diluting the flavor. Available in three prongs depending on the distance from the brew to the machine .Specifications:A: three prongsColour:SilverMaterial:Stainless SteelPackage Contents:1x Coffee CoolerOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.