Three-inch filter frame / holder for motion picture cameras.
The filter opening is ca. 2.5 inch in diameter, thickness: 0.22 inch (caliper not included with the holder).
Untested, sold as-is, no warranty, no returns.
My list of non-paying "buyers": http://sites.google.com/site/nonpayingebaybidders sites.google.com/site/nonpayingebaybidders

Please note: handling times increased due to slowness of Ebay's "managed" payments.