Believe this is catalog 5125K, an optional accessory for Beeman skylite scopes. Been sitting in a safe for 20 years. I never used them. I remember Beeman stating one of these filters is good against snow; probably the green filter. Will ship in a USPS small flat rate box for $8.55 CONUS. Buyer pays shipping charges. Paypal FF/Venmo or Good and Services (+3.3%). Asking $75 + shipping.