1. CRYSTAL CLEAR ICE CUBE TRAY: Clear ice cube maker uses innovative directional zing technology. The foam insulation box makes the ice cubes ze from top to bottom, pushing air bubbles into the reservoir below and leave clear ice cube above. Clear ice maker is a great way to make ice cubes for cocktails at home. 2. SLOW MELTING WHISKEY ICE CUBES: Large ice cube tray is designed to make 2Inch slow-melting ice cubes for whiskey, ensuring your drinks last longer without the real flavor getting watered down. Big ice cube trays make 8 clear cocktail ice, which is perfect for parties and gatherings. Whiskey ice are visually appealing and make your cocktails top notch. 3. EASY TO USE CRAFT ICE MAKER MACHINE: Pour filtered water into the top of the vessel and place on a flat surface in zer for 24-30 hours. Please make sure to minimize any vibrations to ze includes opening and closing zer doors. Before using an ice cube, let it sit out at room temperature for about 3 minutes. Otherwise the ice cube will crack as soon as liquid touches it. 4. MULTIPLE APPLICATIONS SQUARE ICE CUBE TRAYS: Large cube ice tray work great to chill bourbon, whiskey, cocktails, brandy and other beverages. Directional zing cocktail ice cube tray can be used in bars, office and restaurants. Clear ice is perfect for custom cocktails and provide for a great presentation.