Features: 100% brand new and high quality Made of high-quality plastic material for durable and long-lasting use, these flashing eyeglasses are novelty very fun and creative. Come with 3 button batteries. Just press the button and you can switch to fast flashing mode of your LED Light up glasses.(3 mode) Safe, non-toxic, and premium quality, do not block off the vision, no effect on vision. One size suitable for both children and adults. The frame is very light, will not make the children feel uncomfortable. Make your children or yourself more cute and full with festival atmosphere. Can be applied to Christmas party, costume play, themed party, New Year party, holiday events, family events and more Specification: Optional Style: 1,2,3,4 Width: app. 5-7cm(1.97x2.76in) Length: app. 14-18cm(5.51-7.09in) Material: PS Plastic+Electronic Components Power Supply: 3 x AG10 button cell batteries(Included) Color: Random Color(If you buy more than one, you may receive the same color or several colors.) Quantity: 1 pc Note: Transition: 1cm=10mm=0.39inch No retail package. Please allow 1-3mm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you Package includes: 1 x Glasses Frame(other accessories demo in the picture is not included.) Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store