This 10-foot trampoline features six high-strength safety enclosure posts and is constructed from heavy-gauge, rust-resistant galvanized steel. Our trampoline fully complies with ASTM F381-16 and ASTM F2225-15 safety standards regarding components, assembly, usage, and labeling. You can rest assured that the safety materials we have selected are among the very best available on the market, providing the most reliable protection for your family. This trampoline is shipped in a single large package; should you discover any damage to the outer box or find that any parts are missing upon delivery, please do not hesitate to contact us-we will provide a prompt solution for you immediately.