I would never give one star to a product but after 3 pack of same set come up bad, i was forced to. Strings are getting broken while putting them on the bass. Strings are not durable Enough to reach to the tuning. One string got broken, Thomann was kind enough to send one more set. After a while they got broken too. I wanted to give one more chance to those strings and bought one more set. They got broken too. I recommend thomann to reject all labella flats from their stocks.