綠色矽膠C型環 - 中等彈性

The stretch is just right—easy to roll on even when I'm already halfway there, and it stays put without feeling too tight. Definitely helps maintain a fuller, harder erection longer than without.

Finally got around to trying this and it's much more comfortable than the rigid plastic rings I've used before. The silicone texture is smooth against skin and it keeps me just hard enough without feeling restrictive.

The medium stretch level makes it easy to roll on, even when I'm already semi-erect. My only small complaint is that it feels a touch too stretchy for my liking, but it stays put and definitely helps maintain a firmer erection.