Our neighbors now have chickens and we now have a neighborhood coyote. (We think they may be related.) We also have squirrels, mice, chipmunks, song birds, stray cats, wild turkeys, vultures, cottontail rabbits, snakes, and, well you get the picture. We had been composting in raised beds with burlap on top. Within a month of placing new burlap on top our compost, we had huge holes where something(s) chewed threw. It was time for a raised tumbler. I hate to use plastic, but I also don't like the alternative. This plastic is BPA free and claims to be chemical resistant. I'm not sure what that means, but it did have a little bit of smell when I first opened it. The smell was gone by the time I finished assembling it. It took me about 2 hours to assemble this by myself with about 5 minutes of help from my kid because my arms couldn't reach from inside around to outside on the far end of the opening when I was putting in the last screws. Assembly Tips below. Assembly Hints: 1) I accidentally only attached 1 Side A then had to attach the other one when all the sides were finished being attached. I actually think this helped me, though as I was better able to reach the screws and nuts. 2) Have needle nose pliers handy to help hold the nuts in place that go in the centers as you screw in the screws. (See picture.) This is a very tight space and the needle nose can fit in to grip the nut. 3) If you have it, a headlamp is great as it starts to get really dark inside with the black screws and nuts as you get further along in the assembly. 4) A wrench of some kind will be quite handy, especially at the end. 5) The included gloves were a nice gesture, but I found going gloveless helped me feel what I was doing much better and helped to get a better grip on the screws and nuts. The gloves kept slipping so I gave up on using them pretty early. 6) Inserting the center piece half way through--be patient, really line up the arrows! There will be a little gap at the end of each panel.