Made from strong sturdy aluminum, this windmill will never get rusty! The fan blades turn seamlessly with the ball bearings. Has grease zerts that make for easy lubrication to make sure your windmill turn easily. Some assembly is required, and a screwdriver and small wrench are included. Stands 8 ft tall with a 31” square base and a 24” fan. Ground anchors are included. Ships UPS. Some assembly required