I made a bird feeder using charred cedar boards. Here are some photos showing how it can be used. The food container is detachable for easy cleaning. The hole diameter is approximately 11cm, and it comes with a plastic dish. However, you are welcome to replace it with something else to your liking. The main dimensions are as follows: Height: Approximately 14.5cm Width: Approximately 24cm Total height (including screws and dish): Approximately 3cm Hole diameter: Approximately 11cm This is a handmade item by an amateur DIY enthusiast, so it may not be perfect, but I made it as carefully as possible. I hope you will enjoy using it.