Some models, like the CAP Barbell 150-Pound Dumbbell Set, come with a space-saving A-frame rack, while others feature a more traditional horizontal rack that takes up considerably more floor space ...

like those found in the CAP Barbell 150-Pound Dumbbell Set with Rack, or circular ones. There are also options with different coatings, each of which has its own pros and cons. Finally ...