From the seller:
For details as to how this item received the given rating, see below:
This is a seamless grip for the Nintendo switch joy-con controllers. Personally, this accessory has a smooth feel to it with a sturdy grip. There is nothing to dislike about this and is a must have accessory. Even though this is not an original comfort grip and is third party, I personally prefer this one due to the grip.
The only other subtle differences are that it is missing the Switch logo and does not have metal braces on the inserts.
Aside from the controller, the only other plastic present was the molding it came in. If it came in cardboard, that would have been great, oh well, baby steps.
*Note, there are two ratings applied to the reviewed item. "Product rating" and "Packaging rating". The actual product will not be impacted by the packaging as these are two separate ratings.
In regards to packaging, the following are contributing factors against the "Packaging rating":
For additional details, see below: