This is a Small Micro Machine Star Trek NCC-1701-B Enterprise.  It is made of plastic and is a highly detailed, note the markings.  It is about 3  1/4 inches long and 1 1/4 inches wide.  I bought this as part of a job lot and it is in good condition, but shows wear.  The coin in the picture is a Dime to show just how small this item is. 

I will gladly combine these small items to save on the shipping.  Each additional Micro Machine item would be just $.25 for shipping.