The bright colorful appeal of this tunnel, both inside and out drew babies to it like moths to a flame. The excitement of climbing through the tunnel, pretending they were sneaking and hiding was adorable. For those less mobile just lying in the tunnel on their back offers plenty of stimulating activities as well. Very easy to assemble but equally easy to take apart and store which was viewed as a very big plus by parents, that and the fact that the tunnel appeared to be durable enough to last through some serious play time.