This was perfect. We have a two to three foot drop in our backyard as we’re on a hill, and I was worried the kids would accidentally fall into the gravel. I looked at multiple products but I didn’t want a permanent structure, as there was already a fence on the second level. This fence was sturdy enough to keep my kids back (and they leaned on it a few times), but easy enough that I installed it on my own with a screw driver and rubber mallet. 

It did wobble a bit when my four year old ran into it directly as a post shifted, but that just tells me it was doing it’s job (she fell into the fence, not off the ledge). Now that my kids are older, I simply removed the screws and pulled up the panels. I passed it on to a neighbour.  It’s lasted me three years and looks as good as the day we got it. Note that our backyard is 50 feet wide, and I had all the panels in a straight line. The longer the line, the more stable the panels seemed to me.