黑色調校套件

The second strap in this kit is a lifesaver when the first one starts losing tension mid-session. Swapping it out takes about ten seconds, and the black rubber feels sturdy enough to hold up through the whole routine.

The rubber straps in this kit are firmer than the worn-out ones I was using, so they hold tension evenly without slipping mid-session. Having two spares on hand means I’m never stuck waiting for a replacement when one starts to wear down.