Ebonite Choice Pearl. Ebonite GSV-1 Pearl Reactive. Ebonite MOD-1 Core. BOWLING BALL. BOWLING BALL CORE SHAPE. BOWLING BALL COLOR. THIS IS A NIB 15lb. 0oz 3-4 " PIN WITH 3 1/4 TOP and the cg/pin/mb are inline.THIS BALL IS A factory second because of the color. pictures are of the exact ball listed.