The Sportsheets Rubber O Rings 4-Pack are firm yet flexible, latex-free rings in sizes 1.25", 1.5", 1.75", and 2", giving you choices to personalize the ideal size and tightness that work best for your body. Mix and match sizes to stabilize the base of dildos or wear on your penis and testicles to enhance stamina. 

100% nitrile, 70(NBR) rubber (latex free)

• Measurements: 1.25" (3.2 cm), 1.5" (3.8 cm), 1.75" (4.5 cm), and 2" (5 cm) in diameter