2pk Silicone Ice Tray is a suitable Ice Stick Shape for Most Bottles: Ordinary ice cubes cannot be inserted through the openings of most water bottles. But our ice stick can be put into a sports cup to keep the water chilled for a long time. Even if you are out for exercise, you can have ice water anytime you want. Leave the ice cube tray out for a couple of minutes and you will find the ice cube squares are super easy to remove.Suitable Ice Stick Shape for Most Bottles: Ordinary ice cubes cannot be inserted through the openings of most water bottles. But our ice stick can be put into a sports cup to keep the water chilled for a long time. Even if you are out for exercising, you can have ice water anytime you want. Food-Grade Silicone and Easy to Clean: Made from food-grade silicone, soft, and healthy to use with your drinks or baby food. It is suitable for use in the freezer, oven, dishwasher, refrigerator, and microwave and is easy to clean. Versatile Using: These versatile trays not only can be used for making ice sticks, but also candy, biscuits, chocolates, cakes, bread, mousse, jelly, pudding, etc. All these snacks can be made with this one silicone tray. You can make treats for your kids and pets.jj