The main use for edging is to keep weeds from growing beyond the barrier it creates. There's too much space between the bottles to stop weeds from seeding or rooting right through this. You'll even get pockets of dirt that allow weeds to grow in between and ON the edging. It even lets light through to all the small cracks.

The secondary use for edging is so that you can take a edger to the edging and keep grass at an even height right up to the barriers separating a lawn from the garden or flowerbed. Hit this with a weed-wacker, I dare you.

This is why I give the "Green" movement so much crap. Not because I disagree with it, I just don't want to be counted as part of a group that idealizes such idiocy. People will say "that's clever, innovative..." No! They're burying garbage in their yard. They're entitled to do so, I take no issue with that, but it's not clever, it hasn't reduced any waste, and it doesn't serve a practical purpose. If they had just thrown them in the garbage, they'd be shipped to a landfill, where they'd still be half-buried in the ground, but at least the eyesore would hinder the property values of the houses around you.

If you want edging, try the conventional wood or stone. They're freely available, do the job better, it's safer if you use an edger, and your home won't look like it's inhabited by a bunch of tasteless lunatics.

Why is LH even featuring this? They put garbage in dirt, I'm a little underwhelmed.