Halloween Mask SizeOne size fits most people. Safe And High Quality MaterialHalloween Light up mask is made of soft and elastic rubber latex, with plenty of space and breathability. Won't ruins the skin. Environment-friendly materials,non-toxic no damage. Pls put the skull mask in a ventilated place for one day to get rid of the smell. Realistic Movable Jaw Design The jaw of the skull is movable which make the masks look very real. After wearing it, you can imitate the speech of the skull. This will add more joyful and active atmosphere to you in the dress up party. Cosplay Props-Scary Skull Mask When the red/green light come on, make the 3D skull mask cleverly added chills atmosphere. Use this scary costume skeleton mask, to get a really scary look for your halloween costume party. great for halloween, cosplay party, haunted houses, theme costume party, novelty gifts.