These are not Dunlop, they are made in China. They feel perfectly fine when used. The wear and hardness are like a normal pick. There is no warping. Even though they are made in China, they are not inferior products. I mainly use the 0.73mm ones. If the hardness suits you, they wear down less and are good picks. I'm not making a profit on these, it's a service, lol. They will be sent by regular mail, so delivery will be slow. Please be aware that it may take more than 5 days to arrive. They are extremely close to the feel of a "fender HEAVY," but just a little softer.