Adjustable Ambu Perfit Extrication Collar.  A one piece polyethylene shell design that adjusts to any adult neck size with 16 different settings, ranging from Neck-less to tall sizes. Two safety lock buttons hold collars in place when adjusted.  Stores completely flat. Has extra Velcro for thin neck adjustments, a size line for easy accurate adjustments, a large trench hole and a flip chin piece.   

 

Pediatric size also available at slightly higher price.  Please specify your choice when ordering.