Celestron EclipSmart products are ISO 12312-2 compliant to guarantee your safety while viewing the sun and solar eclipses! The 2x power viewers sun and eclipse observing kit is designed to view eclipses and general solar viewing for you and a friend - at 2x magnification! You can even see sunspots on the surface of the sun. The 2x power viewers fold up and fit easily in your pocket. The included eclipse transit map / vintage travel poster has detailed information for the 2017 total solar eclipse and can be hung on your wall. Solar safe technology products feature solar safe filter technology providing the ultimate protection from harmful solar radiation, including both IR and UV light, and filters 99.999% of intense visible light. Celestron solar safe filter technology is guaranteed safe for direct solar observation and has been independently tested by Sai global assurance services. Solar safe products conform to and meet the transmission requirements of ISO 12312-2, filters for direct observation of the sun, EN 1836:2005 + a1:2007 (E) for an E15 filter for the direct observation of the sun and, as/n s 1338.1:2012, filters for eye protectors.