We promise: each set of eclipse glasses have been tested strictly, we will refund if the glasses you bought can't work properly.Safe solar eclipse glasses1) The glasses conform to and meet the transmission requirements of ISO 12312-2-2015 for direct observation of the sun;2)The filters meet the requiremnents of EN: 1836-2005 and AS/NZS: 1338.1-2012, filtering out 100% of harmful ultra-violet, 100% of harmful infrared, and 99.999% of intense visible light;3)The lenses are made of exclusive black polymer material with scratch resistant optical density of 5 or greater, This ensures that you will have the best viewing experience.Comfortable fit on heads of all sizesThe solar eclipse glasses feature 180 degree foldable to fit for both adults and children, even over the current normal glasses.Preparation for "Century" spectacles with Summstar eclipse glasses1) Be part of the history: to view and experience the first "total" solar eclipse from West Coast to East Coast across USA in 99 years, the historic moment is approaching us, August 21st is coming;2)The most widely watched total solar eclipse: nearly 3 minutes total solar eclipse blackout will cross America with 60 miles wide from coast to coast, Oregon's West Coast to South Carolina's East Coast!Warnings1)Never directly look at the sun without special eye protection;2)Children should use these under adult's supervision and always be limited to 3 minutes at a time;3)Don't use these glasses while driving or operating machinery.Package includes:1)5X1 pcs eclipse glasses with Amercian national flag design2)5X1 pcs eclipse glasses with Astronaut design
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