The application of a penis ring typically involves using both hands. To start, gently move the testicles with one hand to create space. While holding a flaccid or semi-erect penis with one hand, carefully slide the ring onto the penis and move it down towards the base. Then gradually tighten the ring by pressing the button at the front. You can choose to use a condom if you wish. Additionally, as an option, you can involve your testicles in the process. Stretch the ring again, and slowly thread each testicle into the ring one by one, then tighten slowly.