Durable and soft food-grade silicone. BPA-free for direct contact with food. The high-quality silicone material makes it durable and safe in the fridge, microwave, and dishwasher.Improved design solutions: the flared filling spout allows for direct filling of drinking water or beverages without the need for a funnel and we have upgraded the 6-slot ice cube tray so you can get more 1.8 inches of ice balls at a time.Non-stick and easy to remove: The super flexible non-stick silicone ice tray makes it easy to remove ice cubes by simply stretching or squeezing, and the non-stick surface makes it very easy to release and clean.Slow melting: Our large ice cubes will quickly cool your drink and slowly melt! Compared to small ice trays, the large ice cubes add less and dilute more slowly, giving you plenty of time to enjoy your drink. Enjoy the refreshing taste while keeping your wine or drink fresh and not watered down.DIY Creativity: Unlike the traditional spherical ice cube molds, the diamond-shaped ice cubes give your drink a more premium and personal touch. You can not only make ice cubes but also try frozen juices, perfect for whisky and cocktails, try infusing mint for a perfect mojito, or make a delicious lemonade with strawberries, DIY creative amazing drinks with your friends.