Pso, I've been a Psorite customer for a couple years. And it's always in my gym, and travel bag. I use the psospine mostly, then the OG psorite next often. I recently started using the Pso-stick and love it. It has some options to make it pso versatile. Now with the connection piece, you can join TWO Pso-sticks together, and raise the bar on self-care. I will be using my connector daily from this day forward.