Núm kích thích thay thế cho máy phát hình bầu dục

Took a chance on this since the original dial wore smooth after years of use, and the fit is snug enough that it hasn't budged during training sessions. Slipped right over the rheostat knob without any fuss, and now I can adjust levels mid-walk without fumbling.

The plastic ridges are deep enough that my thumb finds them even when I'm wearing gloves, and it snapped onto the rheostat knob without any wobble. My dog's been responding to the same levels as before, so the fit is definitely true.

My old dial had worn smooth and slippery, so this replacement is a relief—the grip is noticeably better than the original, and it slides on with a satisfying click. My transmitter feels like new again, and I don't have to fiddle with it to get the right level.