Gewindeadapte poorly finished. External thread cut wrong, thus the adapter can partly not completely pure turn, the internal thread also has errors. Just the beginning at the top is very poorly finished. Screws can be reindrehen only under extremely high effort. Overall, no buy recommendation! At 3 shipping fees at a value of 1.99, which would fit in without a doubt a 1,45er mailer, you need probably not say much.
