Take strap-on sex to the extreme with the Fetish Fantasy Extreme Hollow Strap-on. This heavy duty hollow strap-on features a 10' inch long, 2.1 inch thick phthalate-free rubber dong, held in place by a steel O-ring and leather harness. The comfortable leather harness easily adjusts to fit most sizes, while the durable metal O-rings hold everything together. A long hollow plastic tube, measuring 1 inch in diameter, is placed inside the rubber dong, making it perfect for both sexes to wear. Anyone who says size doesn't matter hasn't experienced this massive strap-on. Length: 10 inch (25.5 cm) Insertable Length: 7 inch (18 cm) Width: 2.1 inch (6.5 cm) Inner Length: 6 inch (15 cm) Inner Diameter: 1.25 inch (3 cm).