In original packaging item, may require some assembly. See link for more details:

Size: 12ft

Note: Missing Top bard to hold up top safety netting. Otherwise all other pieces included does not affect function of trampoline. See pictures for details. 

https://www.costway.com/product/8-10-12-14-15-16-feet-outdoor-trampoline-bounce-combo-with-safety-closure-net-ladder.html