This is a "like new" Celestron AstroSolar Solar Filter - 8" Model # 94162. You can check out all the information from Celestron's Web site! No holes - rarely used.I sold my C8 so I don't need it anymore -but views are GREAT!!!!
Here is some information off the web site, "NEW Celestron Solar Filters made with Baader Astro Solar™ Safety Film. Brighter - Sharper - Higher Contrast images. Far superior to any existing glass, mylar or polymer filters ... The Astro Solar™ film is completely safe and durable (won't break like glass if dropped). It's rating is ND-5 which means that the film transmit 1/100,000 of visible light (.001%) while reflecting 99,999% of unwanted light. The film absorbs all ultraviolet rays while coating reflects infrared light rendering both absolutely harmless. For added assurance, Baader Astro Solar™ film has been declared safe for direct solar viewing by the German National Bureau of Standards for eye safety."
New these run about $89.00 I will sell for $60.00 that will include shipping! Please note that you use this product at your own risk - looking at the sun can damage your eyes if not used as directed by Celestron (instructions included).