Insider Wish List: Blogilates Founder Cassey Ho

"These are so amazing. I learned how to use them in Equinox's RX stretch class and have been addicted ever since. All you have to do is put the ball underneath a muscle that's really sore or hurting, lay down, and roll around. It feels like a deep tissue massage. Amazing and way cheaper than going to a masseuse. When I have time, I can roll my whole body in an hour!"

Yoga Tune Up Therapy Ball Plus ($15)