延長桿 2吋/5公分（2入組）

The 5cm length is exactly what I needed to fine-tune my setup, and having two in the pack means I can swap them out without pausing my routine. They fit snugly into the traction device with no wobble, which gives me peace of mind during longer sessions.

The two separate bars make it easy to switch between length options without fiddling with the whole setup. The 2-inch size is just right for stepping up gradually, and they click in firmly with no wobble during use.

The set gives you a nice range for fine-tuning the adjustment on my device, and the 5cm length is exactly what I needed to step up from the smaller bars. One bar had a slightly rougher edge than the other, but it's nothing a quick sanding didn't fix.