Spartacus Leathers Cock Gear Ball Stretcher. 3" Leather Snap Ball Stretcher. Cock Gear Ball Stretchers pull the scrotum away from the body. These stretchers are made with firm but soft oil tan leather and are lined with soft cow garment leather. Ball stretcher features snap closures. Hand crafted leather goods. Spartacus A Passion For Quality Catalog. Made in the USA.