This product is very well made since it is made of silicone. It's easy to pour water or any other liquid inside, but there's one problem: the liquid sometimes opens the container and it flows out. This causes the ice ball's to not be spherical. Otherwise is was a very great product I am excited to see what I can make with it! I may try to use it to make cake pops since silicone is heat resistant. Overall very great product.