Features: Made of food grade 304 stainless steel, it is corrosion-resistant, non-rusting, mirror-polished, and crack free. Stainless steel ice cube can maintain the saturation of beverages without diluting melted ice. Therefore, you can enjoy strong whiskey. It can be directly placed in the refrigerator and freezer. Takes-it out directly during use, clean it, and-then freezeing-it in the refrigerator for more than 3-hours. Reusable. It is an great gift for men or women of any age who enjoy cool drinks. Such as birthday gift, Fathers Day gift, Thanksgiving gift, Christmas gift, and New Year gift. Skull ice cube with rounded corner are very friendly to glass cup. They-are clearly visible in wine or beverages. Quickly physical coolings, long-lasting low temperature. Specifications: Material: Stainless Steel Color: 1pc Skull In Bulk/4pcs Skull With Silicone-Ice Clip/6pcs Skull With Silicone-Ice Clip Size: As Shown In The Picture Package Includes: 1x Skull/4pcs Skull With Silicone-Ice Clip/6pcs Skull With Silicone-Ice Clip note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.