Head Immobilizer features a base plate to support the patient's head and provide insulation and protection from the ground. ME5303 Head Block has two lateral support pads that fasten to the base plate with hook-and-loop fastening strips. ME5303 Head Immobilizer also includes two forehead/chin straps that hold the lateral support pads in position against the patient's head and facilitate application of the scoop. ME5303 Head Immobilizer can be used at very low temperature. ME5303 Head Immobilizer is X-ray, MRI and CT scan translucent.