This 3D Printed rake was designed to help get rid of pesky duckweed. It is much easier to scoop out with the rake than using a net and dumping every time. Small is great for smaller tanks (20gal and below). Large is good for larger tanks (40gal and above). Rake is shipped in 2 separate parts for shipping purposes and includes super glue for affixing parts together. The super glue is safe for your aquarium once left to cure and completely dry. There will be more colors available in the future and if you have a color request feel free to reach out. Thank you for looking, please message me if you have any questions!