* Unique head chin strap is designed to conform to patients forehead.* Large ear holes for monitoring the patients ear canal.* Minimal interference with X-Ray, MRI or CT scan procedures.* Waterproof vinyl dipped foam makes it easy to clean.* Compatible with all flat backboards.* Compatible with spinal board and cervical collars.Head Immobiliser is simple to use, lightweight and easy to use. Composed of a universal attachment base and two durable head straps ,closed-cell foam head blocks, with one set of head and chin straps. * The head immobiliser can be used on all standard backboards.