FapH

It is important to know the rings provided are glans rings and the Japanese in the 4th picture recommends to use them for a maximum of 15 minutes at a time.
I bought it as I have been looking for a smooth/simple low stimulation hole and I like the theme.
Make sure your fingernails are cut short if you use your hands to clean it as it is easy to scratch the smooth interior as it is that tight and smooth. It is also means it can be messy when pulling out.
I would not use thick lube as it seems to just get pushed into the back leaving the entrance dry so I teared the entrance on mine. When well lubricated it works with a more sensitive member.
The bag it comes with is a tight fit for the hole, and not as nice as the TD bags. A better value add for something themed like this might be some guided audio.

This is the best value I have seen in the portable category. It is definitely around the 4.45in in the specs and the 7.3in might be the packaging. That aside I was worried that it would have the same nasty smell as a similar looking hole that I bought a while ago. Thankfully it did not. It is easy to clean as you can reverse it and portable. As I was curious I tried using a dry stick in it but there is a large air gap and it is much better to just flip it and use a towel. After 6 months it is still working.

It is nice to see more entries in the portable category unfortunately you don't get enough bang for your buck.
While this is a unique green color the competition, YUIRA-MAX line, provides more hole at a lower cost. The Newer Magic Eyes line Shigeki Tariteru adds value with a larger size and two-sided textures, although I have not experienced it. I still use this in my portable rotation to give some variety. After 6 months it is still working.

It was larger than I thought and it can easily fit any normal-size hole (the second product picture does a good job showing this). Discrete as there is no logo on the bag, but you can slightly see the contents.

I have bought a couple dozen holes and this is the first one which can stand up by itself. The harder outer layer allows it to be stable even with a heating rod in it, or you can put it down in the middle of a session without worry of making a mess. It is also easy to clean. I wish more holes were this convenient.
I bought it thinking it was a more open hole, from the side view, not realizing that it was a 5-pleat design. Unfortunately I do not like that star-shaped style. The shape of the entrance could also be much improved.