Beautify your home. Relax while you watch your windmill spin with the wind. Our quality-built windmills features an aluminum structure with stainless steel bolts and nuts. This means they will not rust and will never need painted. All fan tips and tail permanent. Please be advised that these windmills are strictly ornamental. Our fans have grease zerts and bearings to make sure your windmill keeps spinning for years to come. Each windmill comes with anchors to secure it to the ground. With sizes ranging from 4’ to 30’ we are certain there will be a size that fits perfectly in your yard. All Aerator windmills come with 100 ft of airline and 1 (one) diffuser