I bought this set and I am really happy with the product. There was no rusting on the dumbbell rods nor on the metal nuts that hold the weights in place. The nuts are heavy-duty and hold the weights in place. The weight plates are of plastic and they are sealed well so whatever they contain will stay inside. The skipping rope grip has a small chip. The thingamajig for grip strength is hard to squeeze, offers good resistance. Overall very pleased with the purchase.