QUALITY MATERIAL: Made of high quality PVC and El cold light wire, low power consumption, which has no UV harm, there is no adverse effects on the human body.
PRODUCT SIZE: The length of the skull mask is 9 inch, and the width is 6.7 inch, retractable elastic bands are behind the mask, you can adjust the tightness according to your need, suit for children&adults.
4 CONTROLS MODES: The four controls modes, which are always bright, fast flicker, slow flicker and turn off. You can choose the light mode by adjusting the switch on the battery compartment behind the mask. It needs two AA batteries (No battery included in the package).