after me recently the needle is stopped at my Ballpumpe that I have for 5 years (I think after 5 years a needle may actually even break), I have found me this replacement needles.
To make a long story short: 3 needles remained terminated directly at first pumping test and stuck in the ball, two further needles have left the service during each second time.
Since the needles also do not complete all the threads escapes permanent pumping air and the ball can not be fully inflate.
All in all a very bad processing - especially since it's always annoying when the complete air escapes through the broken needle and one has on the football field no tongs thereby to remove the needle.
CONCLUSION: Very poor quality - from buying, I advise urgently! Since 10 needles use in a pack anything!