This is a Canon Extension Tube FD 25. 

This Extension Tube provides 25mm of extension for any Canon FD mount lens while providing full FD lens function. Cosmetically this item is in good shape. It comes with both front & rear caps. 

WE SHIP IN 1 BUSINESS DAY as well we package professionally. We are interested in BUYING your photographic equipment as well. We are Camera Exchange in Waterford, Michigan.

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