The entire structure screws together, which is odd, I am used to the types of poles that fit together and are held in place by the tension of the springs.
It made it really hard to assemble. The screw holes are not drilled properly so it was a nightmare trying to pry and maneuver to make everything fit securely. The excessive screws also made it hard to take down after it flew across our yard in a wind storm... 

The surface is huge and that is nice but it made it very tense and hard to get a good bounce for kids. More appropriate for teen aged kids or adults because they weight more . My 11 year old has fun but he had to put a lot of effort into the bounce. 

Would not recommend a giant trampoline and would not recommend the kind that screws together. But when this thing was up, it was pleasant to look and and the kids liked it. It’s ok but it’s not worth the money or time . Will not be replacing with this kind next year .. also make sure you anchor your 
trampolines !!!