Give your drinks a naval inspired makeover with the Ice Cold Killer Stainless Steel Ice Cube. Taking inspiration from WWII contact naval mines, this stainless steel ice cube adds a talking point to your drink. Looking like a real mine, the Ice Cold Killer is complete with spiky triggers and small rivets for impressive attention to detail. In addition to the innovative look, the ice cube also comes with an eco-friendly design and it's easy to clean. Inside the Ice Cold Killer is a food-grade cooling liquid. Stored in your freezer, it keeps your beverages nice and cold for every sip. Likewise, unlike ice, it'll never water down your drink. To use, simply wash and freeze for around 45 minutes and add to your drink.