Check the listing for details. Small Beamsplitter mirror for Experimention Camera Instrument Repair. Condition: Open box. Listed at 12.00 USD. Untitled Document This sale is for a small beam splitter mirror. Although I have no specification on this, from visual observation, it appears to transmit about 10% and reflect about 90%. These camera from a camera mirror system. The trapezoid size is 2.3mm on the short end and 3.1mm on the long side. Length is 2.7mm. Thickness is 1mm. These are new old stock, surface needs cleaning from years of storage. loc 194.10 Terms of sale United States Items shipped to a United States address are sent by USPS Priority Mail or First Class Package depending on the size, weight, and value of the item. All shipping charges include insurance to cover the value of the item. International Items shipped to an International address are sent via United States Postal Service, Buyer is responsible for any customs fees. /