It enhance Spinal extension, mobility and flexibility! The Spine Gap allows the spine to move freely as you roll, unlike other flat rollers that jam your spine!
The height of the roller allows you to get into tough to roll areas with ease like the upper back, middle and lower back.
It is built strong from tough EVA molded foam and can support 1000lbs! So everyone can use it and it won't break down!
11.5 inches x 7.5 inches Makes it Travel Friendly! Note this product is designed firm but has some give to be effective.