The product is poorly made. Just bad craftsmanship. The three metal leaves are very loose, and the screw mechanism that opens it up is poorly machined so that it gets jammed very easily.
Post office messed up and didn't deliver the package. Both the post office and the seller are pointing fingers at each other, both refuse to cooperate and solve the problem and I >the customer< am wasting needless time and have lost my money! AliExpress service could not have been worse either!