This is a precision spin top that consists of 14 pieces , not including the Si3N4 ceramic ball contact point and the 420 stainless ball in the top of the stem.The lower disk is made of 260 brass , the middle disk is 416 stainless , and the upper disk is flamed 6al4v titanium. There is a total of 10 440 stainless balls captured in ball milled recesses in between the discs, as you can see in the photos.The stem is 7075 aluminum. All parts are polished to a mirror finish . The major diameter is 1.155" and it is 2.016" tall. The weight is 55 grams. This top was handcrafted on manual equipment and made in the USA. The top in the photos is the actual item that you will receive. A black velvet carry bag is included.