I would definitely suggest wrist wraps here. If your wrists are giving in from the impact of your punches to the point that your starting to feel pain, you're going to need the extra support to help facilitate that. Most sets of wrist wraps will run your from $4 to $10 depending on what brand you get. You should be able to find them at any local sporting goods store (if it's not an outdoors type place).
It doesn't matter if you agree or disagree
... As long as I don't bore you and I spark a moment of thought, my goal is achieved
Queng leon queng tigre ecu tacacut, queca pa? - Pampangan Mandarigma Motto