Function: Male Exercise Toy Urethral Penis Plug Color: Clear Length: 20 cm/7.9 inch Power: No Material: Glass Package: Blank Box Dia Size: S: 5 mm M: 6 mm L: 7 mm XL: 8 mm XXL: 9 mm 3XL: 10 mm 4XL: 11 mm 5XL: 12 mm