The perfect party favors for a Bar Mitzvah, Sweet 16 party, holiday celebration, or other special events, these blue slotted glasses light up the night in style and ensure your party attire looks fresh! Each pair of Blue LED Slotted Glasses is sold by the pair and comes with 3 AG3 batteries included and installed. WARNING: These glasses by nature restrict the field of vision and should NOT be used while driving or when unobstructed vision is required.