ลูกบอลปิดปากสีแดงทึบ

The rubber ball has just enough give that my jaw doesn't ache after twenty minutes, which I was worried about. The strap adjusts down small enough for a narrow head too.

Wasn't sure about the 1.5-inch ball at first but it fits comfortably and stays put. The adjustable strap lets me get it snug without any pinching, which was my main worry. Genuinely impressed with how secure it feels.

The rubber ball is softer than I expected, which makes a huge difference for longer sessions. Strap holds snug once you get the fit right, and the red color looks even better in person than on screen. Exactly what I was hoping for.