The quality is decent. As should be immediately obvious from the pictures, pin oversetting is a possible technique with this lock. Overlifting practice might be possible but keep in mind the fragile plastic body. I wholeheartedly recommend both the product and the seller.
First picture in Product Description shows a different lock (7 pin). Also the description "7 pins Lock on both sides. So that it is equal to 2 x 7 pins lock" is incorrect. It is a 5 pins lock. Plastic is not as transparent as in the padlock from Naierdi. Besides this all is in order.