This is a Small Micro Machine Plastic Star Trek Romulan Bird of Prey Warship.  It is made of plastic and is very detailed, note the markings (Bird on the underside).  It is about 1 5/8 inches long and about 2 3/4 inches wide.  I bought this as part of a job lot and it is in very good condition. 

I will gladly combine these small items to save on the shipping.  Each additional metal item would be just 50 cents for shipping.