Dental composite product, filling temporary replacement.

received super fast in 1 day, until then all is well ..
But the product does not keep its promises, difficult to implement, does not, does not harden completely and left after 2 days.
Fortunately it is not expensive, but I would not recommend this type of product.
Whatever it is, I even tried another much more expensive brand of a well-known site, and the same result ...
Better to make an appointment with a real dentist!