you put the bottom of the seat at the middle of your thighs, its mainly for siactic pain going down you legs while sitting, very little support for back , but it helped my back also, i was so supprised it worked, i use it the car and in my rocker and my comp desk chair, i really could not sit beforeView Thread
I could not sit for any length of time withour pain, i purchased the seat called backjoy, and it releives the pain, i couldnt bekleive it, reallky , it stopd the pain, now I carrie it every where i goView Thread