彈簧組

Swapping out the old springs made an immediate difference in resistance—my workouts feel consistent again instead of unpredictable. The set includes exactly the tension levels I needed to dial in each exercise.

I was skeptical at first, but swapping out my old springs made a huge difference—the resistance feels noticeably smoother and more consistent from the first exercise. The set itself is sturdy and the tension is exactly what I remembered when everything was new. Worth the money if you’ve been feeling

Swapped these in last week and immediately noticed the resistance feels even again, especially on the heavier springs. The set covers the full range I need for footwork drills, and nothing has gone slack or squeaky yet.