Nice, sturdy for plastic, thought they were going to be metal for some reason. Easy to hammer in when the soil is wet, some of the choppers would turn sideways still, and I had to go back and re-hammer. Sometimes, the loop connectors would disconnect too, and it was hard to pull the choppers back out of the ground once they have been pounded in.
Some may think they look cheap, luckily I am trying to use them as a grass (Bermuda) barrier for my garden. Seems to be three ways to install. The first is to link them together first, the entire row, then try hammering them in- impossible. The second is to do them one piece at a time- too time consuming. The third, and best way I found, is to put two or three together then try hammering the set together.
All in all, not a bad purchase for the price.