I do not know if I somehow had bad luck or whatever with these stems, but on the first day the thread are interrupted me in the barrel even at 2 shafts. that's been in years in which I play darts a few times happened to me. Meanwhile, all the shafts 7 broken (in 4 pieces, the thread is broken, the purchase is less than a month ago), the Unicorn Gripper2 I will never buy again.
