The Florfliegenkasten, I received a few days ago makes, visually what her and is certainly being tested in practice. Why I forgive only four stars, for the following reason: In the product description to read: "The Florfliegenkasten should not be treated with varnish or wood preservatives." On the installation instructions supplied on the other hand says, "For a long service life of the products we recommend that sustained stress with a wood preservative to protect." If the latter is true invitation, and I assume, then it would be more consumer-friendly, when the Florfliegenkasten would be equal glazed factory.