The Istanbul Agop 15" Xist Hi Hats consist of a lathed top and a raw bottom, both in brilliant finish. The heavier bottom creates a very substantial chick, while the medium top gives the pair a strong response with fantastic projection without being harsh. The Istanbul Agop 15" Xist Mixed Hi Hat cymbals are full and cutting played open and have a tight definition when closed. The 15" diameter gives the pair a little more boost and body than the 14" version. Each Turkish cymbal is a work of art hand-crafted individually by the cymbalsmith. Variations in color, hammer marks, lathing, labels, etc., are all enhancements that add to the natural beauty, sound, and unique quality of these one-of-a-kind cymbals.