Features: Bird repellent windmills are made of thick environmentally friendly material, so as not to harm birds. They are durable and windproof, easily spinning in all seasons. Ideal for use in yards, orchards, gardens, and garages. The package includes 10 reflective windmills. Notes: The windmills are shipped unassembled and must be assembled before use. Installation instructions: Insert the long tubes into the short tube and connect them, then insert the short shaft that connects the windmill and the pipe. Place the flat ring on the thin rod and then insert the windmill. Secure each windmill piece and flower film and adjust the windmill's position.