Safe Material: This ice ball maker is made of food grade silicone and AS material. It is safe, hygienic, non-toxic and odorless. The silicone and AS lid closed well at the edges. This keeps the ball ice cube mold as a perfect ball after filling with water instead of falling apart. Easy-Release Design: The bottom of the ice ball mold is made of high-quality soft silicone material, which makes the ice ball easy to release. You can squeeze the silicone base to release the ice ball. It is recommended to let the mold and ice ball stand for a minute after taking it out of the freezer to allow it to come loose. Nice Look: This cute candy colored light bulb ball ice cube mold will be a nice accent in your freezer . When you take out the cute round ice cube mold from the freezer and take out the perfectly shaped ice ball, you will feel that making ice ball is not just a process but a pleasure. Extra Large Ice Ball Size: This ice ball mold can Make 2.5 inch extra large ice balls, just one of which will keep your drink cold and refreshing for a long time. The large ball of ice melts slowly for long-lasting chills and won't quickly dilute your drink. You can put it in your iced tea, cocktails, whiskey, coffee and enjoy the taste of your drink. Water Filling Hole and Visible Water Level: The water filling hole at the top allows you to fill the mold without dividing the ice mold in half. The transparent AS lid allows you to see the water level and stop filling in time.