How has this seller prevented any 1 star reviews?

Over 27,000 reviews and not even a single 1 or 2 star review: https://www.amazon.com/Scissors-Titanium-Multipurpose-Comfort-Grip-Handles/dp/B07H3QKN2Z/

What are they doing to prevent them? AmazonBasics sell the same scissors and have 1% 1 star reviews on it, so it’s not that the product is perfect. This seller has found a way to not have 1 star reviews. They must be contacting the reviewers or something.