There are a few things to consider when purchasing tent poles. The first is the weight of the pole. Heavier duty poles will be stronger and more durable, but also heavier to carry. Lighter weight poles may not be as strong, but they will be easier to carry. Another thing to consider is the length of the pole. Longer poles will give you more headroom inside your tent, but will also be heavier and more difficult to set up. Finally, consider the material of the pole. Aluminum poles are lightweight and strong, but can bend if enough force is applied. Fiberglass or carbon fiber poles are also strong, but can break if they are hit too hard.