HIGH-QUALITY FLEXIBLE SILICONE: The spherical ice cube mold is made of BPA-free food grade silicone and a spherical ice cube mold. The durability and leak-proof properties of their material mean that the mold housings are easy to fill and will not crack like conventional whiskey ice cube molds. KEEP YOUR DRINKS COLD LONGER: Our Cubes of Ice Giants creates 4 perfect whiskey spheres ice cube tray, No more adding ice cubes, no more diluted drinks. With this shape, Due to its small surface area, a spherical cocktail ice cube melts more slowly than a regular ice cube. You can make ice cubes to cool your drinks, making you feel cooler and more comfortable in the hot summer. REMOVABLE LID AND FUNNEL: The upgraded ice cube tray has a lid removable, This detachable design allows you to easily remove ice cubes from the mold and prevent other foods in the refrigerator from affecting the taste of the ice cubes. In addition, a universal plastic funnel comes with your portable circular ice cube tray, you can pour water into the spherical ice cube mold with ease, without experiencing any splashes or drips. PERFECT FOR ALL TYPES OF DRINKS: Our ice cubes last a long time in liquid, whether it's apple juice, whiskey or bourbon. The ice cube sphere fits perfectly into normal sized glasses and coffee cups. Add your personal touch by adding, in addition to water, fruit, ice cream, soda, wine - in short, anything that can be frozen - into your molds. Let your imagination run wild! PERFECT FOR THE WHISKEY DRINKER: Much more distinguished than whiskey rocks, Ultra-Slow Melting will not dilute your drink, preserving the taste and strength of your Scotch, Favorite Irish whiskey or Bourbon. Surprise your husband, wife or friends with this unique gift. The perfect gift idea for a birthday, Father's Day, a bachelor party or for Christmas.