Knack - off! Scrap factory.
Resending costs - and certainly I find somewhere a wing nut, with which I can replace the broken knob, but is replacing first WD 40 festgegammelte the screw. I am annoyed about myself.
So a tripod is typically a purchase for long-term use. The industry standard (Manfrotto) costs around 30.- Euro more and this additional charge would certainly forgotten in two or three years. This - really miserable - tripod will remember in years to come about how stupid it was to buy low.
There are good products from Walimex (eg. The hot shoe and the shields / reflectors), but this stand is cheap in the negative sense.
I turned for the problem directly Walimex (Photo Walser import export); I really wanted to buy such a gag, because that would probably be cheaper than all stand back through the area and to send her (and I would not stand in the transport and processing time)
Very friendly service, and after I emailed the Amazon account to the company, I had 48 hours later, two such Knebeklschrauben in the mailbox. The stand will not improve, but the service is excellent. I have therefore the evaluation of 1 point raised to 3 stars.