It's largely arms and ammunition.
And the idea that we are saving money by provoking a nuclear power has got to be one of the craziest things I have read in quite some time.
What does them having nuclear weapons have to do with anything? Either they're in the wrong for invading a sovereign country or not (although international politics is never about right and wrong, but it's about power). Just because they have nuclear weapons they should be allowed to do whatever they want? So the US should be free to invade any other nation without consequences too, right? What a joke.
If we're removing the need to maintain old equipment, it's removing a cost. The cost was maintained to fight Russia, and this weakens Russia, so future costs are decreased. It saves money, right? It doesn't matter who is provoked. It doesn't change that fact. Sure, we're also sending aid and other things, but the goal is to create a good outcome for the US. Ukraine produces a lot of food, so securing them is in our benefit, along with any other agreements. You can disagree with this if you want, but that's international politics. Russia wanted the same except with total annexation and subservience. I'd say remaining autonomous is a better outcome for them.