Master Series Fuk Tool Penis Sheath and Ball Stretcher Black from XR Brands. This firm yet stretchy cock sheath provides added girth, length, and texture. Now you can go longer and harder, just by slipping on this Fuk Tool. The holes support the cock and balls, while providing separation. Perfect for a long night of endless penetration. Measurements: 8.5 inches in total length, 7 inches insertable, 1.65 inches in diameter at widest point. Material Thermoplastic Rubber TPR. Color Black.