They are awesome!!!
I love these tubes. These worked great.  Of the 6 I ordered, 2 leaked when I filled them full of water. For the 2 leaky one’s. I put the tubes in the freezer, added a small amount of luke warm ingredients and then put it back in the freezer. Once it set up, I filled the remainder of the tube. Worked like a charm. No leaks.
Rating: 5 stars