HSZR

This is essentially just the soft alternative to the Heavens Fall Nine Ex-Hard.
It's still highly stimulating, but not as abrasive.
Personally I like both, but the ona cannon is definitely more accessible, whereas the Heavens Fall Nine Ex-Hard could be too much for some.

If you're looking for something stimulating and don't care about realism, this is a good choice.

I don't think the "oral" theme is particularly noticable, but it is an excellent onahole nonetheless.

It's large enough to use comfortably, and the double helix and patterns provide just the right amount of stimulation. The material is well balanced - soft enough to be comfortable, and hard enough to not lose stimulation or flop all over the place.

The small entrance and internal folds make it a bit of a pain to clean properly, but I believe it's worth it.

The main appeal for this onahole is that it tries to go for sensations you can't get on a standard hole.

As others have mentioned, you need to squeeze out the air and find the right balance of lubricant in order to get most out of it.
The entrance is quite tight, but perhaps due to my shape, it's not always a perfect seal so sometimes it can be quite loud.
This leads to a bit of an inconsistent experience, sometimes it's good, other times it's not quite right and more trouble than it's worth.
However, it definitely is a unique experience, and cleanup is extremely easy.

I wouldn't recommend this as a first onahole or to anyone who wants something simple. But if you're looking for something new it's worth trying in my opinion.

Excellent and highly stimulating.
As others have mentioned, it grips tight and really tries to push back, so you cannot go in "half-mast".
However, it's a fantasic ride once you're in.

The hard translucent material is durable and easy to clean, which is a huge plus.
I would absolutely recommend it to anyone curious about exploring hard/intense onaholes.

Worth mentioning that this hole tends to make quite a bit of noise.
It's also probably best not to use it too frequently if you're concerned about desensitization.

I don't have a lot of experience with "soft" onas, so I decided to try this one after seeing some favorable reviews I saw on Japanese sites.

It's a medium size, weighing about 400g and measuring 16cm L x 8cm W x 6.5cm H.
The material is extremely soft, floppy, and elastic.
The main feature of the design is the long vertical folds, which providing a pleasant, almost fluffy sensation.
Since the soft material isn't very stimulating, it's well suited for long sessions.

The construction seems mostly good, except for the very end which seems a bit thin.
I would be careful about inserting too deeply if you're concerned about durability.

When opened, there was a lot of oil and a strong smell, which required quite a bit of washing to get rid of.
While this is normal for "soft" TPE, I thought it was worth mentioning for anyone inexperienced.

Overall I think a rating of about 4* is appropriate.
However, if you are a fan of soft onaholes, then this may be a 5* for you.