There are a few different models available, but this is one of the bigger ones. You can grow various herbs and vegetables year round. This model lets you grow 7 types of plants at the same time. The downside is that you have to buy the pre-packaged seed pods from Miracle-Gro. The upside is that it’s relatively cheap and the average lifespan of the plants is about 4 months (9 months for tomatoes and peppers). Like I said, there are models ranging from 50$ to hundreds of dollars. See this image to view the full range.