This 12ft high windmill is made from aluminum to insure you that it will never rust. The 30” fan blade turns easily on ball bearings giving you the enjoyable windmill that you have always wanted. The fan blades have grease zerts that make for easy lubrication. Some assembly is required and a Phillips screwdriver, and a 3/8” wrench are necessary. This windmill stands 12 ft tall with a 41” square base. Ground anchors are included. Ships UPS. Tower legs are 3/4 " square tubular aluminum with a .090 wall thickness.