Men everywhere and connoisseurs of great scotch whiskey will appreciate this Rock Glass and Ice Ball. When drinking whiskey or another liquor, you want your drink to be hold without being watered down. This is the genius of spheres of ice. A sphere has less surface area than a cube, thus it melts slower and keeps your drink cold longer. This set comes with a silicon mould to make perfect ice balls easily and a special rock glass which creates natural liquid motion increasing the aromas of your favorite drink. The shape of the glass makes rolling easy without spilling. Any guy can use some extra scotch glasses and the spherical ice balls make a unique gift.