Happy Wings Refillable Nyjer Sock Wild Bird Feeder, 3 count

hence the middle level rating. The sock itself is fine but where the draw string goes through the top of the sock is a bit flimsy and tends to tear. With curious deer around, we have a more challenging environment. And the black bear went through them like paper. Of course, he also went through the steel cage around our seed feeder so that isn't a problem with these socks.

Good quality mesh. The strings are knotted to keep them from tangling, but the knots are loose so it's easy to untie and hang where I want. Works well with the recommended seeds. Holds them in while they hang. Obviously for the birds to get the seeds out the mesh needs to allow the seeds to fall out when moved. So when you put the seeds in I recommend doing it outside or to put something under the bag. There is quite a bit of spillage while it's being handled. The straps are easy to untie and hang where you want. I hung two on branches and one on a birdfeeder stand hook. The bag itself is pretty light so whatever you hang it on just has to handle the weight of the seeds and birds. As of yet I have not seen any birds on them but I am in an area with the birds the seeds list on the package. So I will update later with how well it holds up to being used.

These little sacks are nice and durable. They hold the seed well and can be placed in trees, Sheppard hooks, etc. The only problem I had was that the string came off the top of one of the bags immediately after removing it from the package. It was difficult to weave it back through the hole.