Haven’t heard of the Theracane? Neither had I until my sister so kindly purchased one for me for Christmas. 
This plastic, albeit strange, looking device is perfect for anyone who has hard to reach knots in their back and neck.
Theracane is perfectly shaped to easily hold while reaching the middle of your back, without having to pull off a yoga move to get your opposite arm into the right position.
This is an easy $26 purchase decision in my book!