Simple water filling - Pour half of the water directly into the ice maker cup within 3 seconds, saving time. Easy to fill ice - This compact ice cube tray is made of BPA-free silicone, which is easier to release ice cubes than plastic ice cube trays. Gently press the ice cylinder, and the ice cubes fall out, easy to use. If it's hard frozen, you can pour a little hot water in the middle of the cup, and then the next job will be very simple. Suitable for freezing - The ice cube bottle cap forms a seal by inserting the silicone lip, and the stable base fits perfectly on the lid of another mold, so you can stack multiple silicone ice molds. There are also ice maker cups with lids to prevent odors and other things. Space saving - Small and round, just the right size of 0.5 inches, easy to place. Perfect gift - This ice cup maker is a great gift for friends or family who like to make ice cubes.