Steel will avoid crash down from holder because of branch coming down in the wind, pet or something else knocking the globe These machine polished mirror spheres will reflect light and objects in your garden creating a truly unique effect Stainless Steel Gazing Ball is made of heavy duty stainless steel with maximum corrosion resistance and durability The high brightness shine sphere will offer beautiful reflections all year-around, rain or shine The garden globes can be shining point decoration of your garden corner, around your pool pond, DIY material