Hi Irene, a Balanced Body Red spring is the second strongest spring, so I would say it's equivalent or closest to a Yellow Peak spring. I hope this helps!

Thank you Tracey! So creative and challenging with great stretches!

Feel so much better after that class- thank you!

That you don't miss a breath while working so hard is inspirational! 

Got me sweating there. Thank you Tracey❤️❤️

lovely. absolutely love this class. i wish you had name of the exercise like other classes. 

love tracy's 30 min classes.  this one wasn't my favourite but it still was good.

Awesome workout. This was my first time using the box. =) Thank you! 

This was one of the first workouts I watched back in May when I got my reformer. Circled around to it today and I’ve NO idea how I did it then. I bet I was a hot mess. Super effective today tho! Thanks Tracy!

Fun!  Loved the balance work especially.  Thank you Tracey!!