Interesting that they are apparently selling physical collection sets of elements in a box that shows all 118 elements. Somehow I suspect they possibly can not contain all the elements, due to scarcity/half-life/regulations?
That site is misleading. Even putting aside regulations for many of the elements, everything after plutonium does not occur in nature and is made synthetically in individual atomic amounts that usually decay in hours to milliseconds. There is no way to see them, let alone sell them as a commercial product.