If you wish you could freely choose between all of your dildos when you and your partner have fun with strap-on sex, then the Sportsheets Rubber O-Rings Pack of 4 is the answer you've been looking for.
The rubber rings gives you the possibility to place dildos of all sizes in your harness. They can also be used as cock rings for prolonged and strengthened erections.
The O-rings can be used with harnesses from Sportsheets. They are made from flexible rubber, which makes it easy to place on your shaft if you wish to use it as a cock ring.
The pack contains 4 different sized O-rings, with a diameter of 3.2 cm, 3.8 cm, 4.5 cm and 5 cm, respectively.