Some job descriptions include meaningless benefits. For example, in my country, the law enforces employers to contribute to pension. Some job descriptions include "Pension contribution" in benefit section. What????
I'd guess that means that there is a market of unofficial jobs in your country and the description says that they either contribute to your pension at full scale or at some degree by reporting your salary for tax services lower than it is.
In my country half the companies do either of these cause all the taxes on the behalf of the workers and pension contributions are done by them, not the workers.
Not the same for my country. It's simply those companies cannot think of any benefit they can provide, so they just put the obvious one.
I think that usually refers to that they take over a part of the required contribution or that it allows you to pay more into the pension.