My sister got some defective organ needles, too - the return for credit was a very short time so she was not able to return them. The holes were not the right shape and some had burrs - the shafts were twisted or had burrs. I think some times those needles are ok but if you buy any it might be a good idea to look at them under a magnifying glass, test a few and if you need to return them do it before the date expires.