The Sportsheets Merge Collection Rubber O-Ring 4-Pack are firm yet stretchy, latex-free rings in sizes 1.5, 1.75, 2 and 2.25 inches, giving you choices to personalise the ideal size and tightness that work best for your body. Mix and match sizes and vibrant colours to stabilise the base of dildos, wear on your penis and testicles to enhance stamina or to simply brighten up your strap on play. Merge with pleasure using the Merge Collections® vibrant pack of O-Rings. Features: - Mix and match sizes and vibrant colours to stabilise the base of dildos. - Sizes - 1.5'' (3.8 cm), 1.75'' (4.5 cm), 2'' (5 cm) and 2.25'' (5.7 cm) Diameter - Wear on your penis and testicles to enhance stamina. - Brighten up your strap-on play.