Mack Tuff 可調式矽膠陰莖環 透明

The silicone has a nice soft stretch to it, no pinching even after an hour. The slide adjuster actually stays put once you set it, which I wasn't expecting at this price. Way better than the cheap rubber ones I've tried.

The lasso-style adjustment makes it ridiculously easy to get the perfect fit, and it held up all night without any slipping. The silicone feels smooth and comfortable too, even after hours of wear.

The lasso adjustment is handy and the silicone doesn't pinch, but the ABS slider tends to slip once things get going. It works fine for the price, I just have to readjust it more than I'd like.