Sold in pairs, the silver Zizi Plasma Ball Stretcher can be used as a ball stretcher and/or a small penis ring. It does not look like much at first glance but is extremely flexible and is absolutely perfect to tighten bollocks. Try multiple combinations - solo, one on the other, or penis plus testicles. Made from TPR, it is extremely elastic. 40 mm wide, 20 mm diameter, 5 mm thickness.