The Tholian destroyer is an improved version of the Patrol Corvette (one of the two ships in 0719). Both PCs and DDs have been seen on television. The ship has phasers, photon torpedoes (or disruptors), and most importantly... web generators!
Not sold separately in stores, this is the DD from 0704 available separately. Pewter, with stand, for gaming or display.
Photo shows item painted by a player. Ships are sold unpainted. Painting guides are available on line, but you can paint your ships any way you want.