Safely view solar eclipses and other solar phenomenon with Eclipse Shades^® Eclipse Glasses from Astronomy magazine and Rainbow Symphony, Inc. Lenses are made of scratch resistant, optical density 5 or greater, “Black/Silver Polymer” material which filters out 100% of harmful ultra-violet, 100% of harmful infrared and 99.999% of intense visible light. These NASA approved solar eclipse glasses create a sharp solar image with a natural orange color. Eclipse Shades^® are CE certified and ISO 12312-2:2015 compliant which make them absolutely safe for direct solar viewing. Eclipse Glasses come in packs of 5 which are perfect for solar eclipse viewing with students, friends, and family. The backside of the eclipse glasses is printed with safety information.