Alternative to Yoga for Back Pain

Following my last post regarding Yoga and back pain, it was brought to my attention by a patient of mine that they liked the idea of child's pose to help with lower back tightness, but could not get on the floor or get into that position to stretch their back.  They suggested that I offer an alternative for those who are in a similar situation.

Below you will find that alternative.  This is a stretch you can do anywhere.  I've also provided a seated option.