1.Locks ensure selected sizes stay in place.
2.Adjustment tracks ensure symmetrical alignment of size.
3.Uses the same sizing and application method as the original collars.
4.Easy access for pulse checks, advanced air way procedures, and visualization through oversized trachea hole.
5.Room for large fingers to slide through the rear panel opening for cervical palpation.
6.Directions molded into collar.
7.Radiolucent, MRI and CT scan compatible.