Discover the ideal match! Enhance the versatility of your favorite SportSheets strap-on harness with four sizes of rubber O-rings. These moderately stretchy, latex-free rings enable you to attach new and exciting dildos ranging from extra-small to extra-large to your preferred harness. Alternatively, select your perfect size and tightness to wrap around your penis or both your balls and penis, using them as a cock ring. With restricted blood flow, your erection will be firmer, more sensitive, and longer-lasting than ever before. Measurements: 1.25 inches (3.2 cm), 1.5 inches (3.8 cm), 1.75 inches (4.5 cm), and 2 inches (5 cm) in diameter.