Purchased this for 4 year old TALL Granddaughter and 5 month old grandson (added a baby swing) assisted husband in assembling and MAN the company who designed this could have made the assembly much easier, it isn't HARD just not clear and numerous pieces/parts were mislabeled with the WRONG title, which caused us to just use common sense, i.e. package stated Z but instructions stated M. Took almost 5 hours to assemble but the look of happiness on grandkids face in the end was worth it. Trampoline and slide have been their favorites.