GL-25 - Black Polymer Film Solar Filter Glasses (One pack of 25 Each) Glasses Dimensions: 1.5" x 16" (38mm x 406mm) A lower cost optical thin film alternative to glass when lower magnification is used Black polymer is the most common filtering material for observing the sun through telescopes and binoculars and with the naked eye Safely view the sun anytime and during all partial phases of an eclipse; (They do not include a storage case) The glasses are light weight for portability and made of sturdy paperboard - Made in USA