I have many $15 Quartz Enhydros, both are smaller.
One is almost a double point, but one side is raw and natural so not a point, its bubble is sooo tiny and clear, but this one is full of rainbow!
The other one is smaller, maybe even a hint of garden quartz, it has 2 marked bubbles, and one is dark easy to see, the other is clear but visible.
Then there is a super clear elongated with one circled bubble, another iron tinted one has a fast-moving black debris and rainbows!
There is a flat point one, with a clear small fast moving bubble that is circled, harder to find, but its there!
The last one is a small super clear smokey quartz enhydro, and it does not have a circle, but I did finally find the small, tiny bubble in it, I wouldn't suggest this one unless you have super eyesight!