In the Breeze White Eagle Sheen Crystal Spinner Item #9160 - White Eagle Sheen Crystal Spinners are beautifully designed! The five dangling arms are cut from a single pieces of reflective holographic Mylar The spinner measures 12 inches in diameter and 18 inches high They are light enough to dance and sparkle in the slightest breeze but also tough enough to withstand varied weather conditions No assembly is required. They are ready to hang with the attached snap swivel Reflective Mylar is often used as bird repellant and scaring nuisance animals. They are also great to see wind direction. Butterflies and hummingbirds love the bright rainbows they reflect