CastleFlexx
A smarter way to stretch and strengthen.
CastleFlexx’s foot-anchored system helps mobilize calves, hamstrings, and hips while building strength through range — a daily fix for tight, desk-bound bodies.
"This device is the perfect device because it's easy to demonstrate. It's easy to use, and every patient I give it to has never complained - they're stretching more, coming into my office feeling better, they're doing everything I asked them to do, when 98% of the population, when you give them exercises, they won't do them!"
CastleFlexxCastleFit