Lumbar Gap Rating

The Lumbar Gap Rating is the way we gauge which Backrest or Booster you need. Using this simple way of measuring your Lumbar Gap we can determine which model is best for you and your needs.

Do you have a 0-1-2-3-or-4 Finger Rating? Find out using our Guide found in the middle of our Main Page. 

All of our Backrests and Boosters are labeled with there Lumbar Gap Rating the "LGR". Use your Fingers (0-4) to measure this Gap and choose the Backrest that matches the "LGR" you have.