This is a perfume filled glass bottle, the capacity is usually 6ml, 8ml, 10ml, etc., there are smooth glass bottles, also have screw bottles, square bottles, etc.
There are also three kinds of beads, plastic beads, glass beads, steel beads.
The specification of the aluminum cap is 18*26 rolling cover. This is a type of cracker rolling cover. The aluminum cover will roll three warps.
The other three are required to match, if random matching, may lead to leakage.