Spartacus Leathers Cock Gear Ball Stretcher. 3" Leather Snap Ball Stretcher. Cock Gear Ball Stretchers pull the nut sack from the body. These stretchers are created with firm but soft oil tan leather and therefore are lined with soft cow outfit leather. Ball stretcher features snap closures. Hands crafted leather goods. Spartacus A Love For Quality Catalog page 33. Made in the united states. New images added Feb 3, 2013. -old