Adjustable height back and adjustable angle back from 5- 20 degrees

3-1/4" opening placed 1" from bottom

The universal-sized mouthpiece connects to the spirometer or peak flow meter

Special 7" Nu-Form Support Belt 3-1/4" Blue Bias Ring Placed 1" From Top Right

3-1/2mm x I

Prevail Per-Fit Men's Protective Underwear - Extra Absorbency Nasal Headgear Adjustable height back and adjustablePer Fit Men's Protective Underwear is designed specifically for men to deliver extra absorbency and the feel of standard underwear. For men who experience frequent leaks or sudden urges that don't allow time to get to the bathroom, this protective underwear delivers extra moisture and odor protection for long lasting freshness. The breathable, cloth like material creates a form fitting shape and gives the look and feel of standard underwear. Product