My 6 yr. old son and I assembled this trampoline during the course of an afternoon.  The instructions were easy to understand and follow.  Like anything that requires assembly, you should read the instructions completely before beginning.  

The safety enclosure is actually sewn into the trampoline mat and the opening is secured by a zipper and 3 heavy duty clips, very safe.

My son and his friends spend hours in the backyard jumping and just hanging out on the trampoline.