A part of the review has been auto-translated.
Excellent quality!
They are the same as the one shipped with the Dragon except that they are blue/green. You'll need to cut small notches on the sides to fit them perfectly on the Dragon. (This is even the case with the default sock).
Purchased these together with Triangle Labs V6 hotend for Prusa. They are a perfect match with that. Sleeves fit well to v6 heat block and they look same as was the one delivered with the heat block.
Untested. Speedy delivery, so I'm happy so far. Always looking for socks that actually hold on properly and do not slip off. This seems to be doing the trick so far.
Great quality product.