PLASTIC An assortment of 4 shades are included (1X Blue, 1 X Green, 1 X Red,1 X White) in each box. the glasses are made of environmentally friendly sturdy high-quality PC plastic, safe and non-toxic and no heat generation. the LED shutter shades glasses lights do not block off the vision and one size fits most. High quality LEDs that illuminate the light bars.These eyeglasses feature 6 bright LEDs per color. pull out the glow glases insulative plastic sheet, There are 3 functions when you press the button for 3 times: fast flashing, slow flashing, and constant.The on/off button is also used to change the mode.Let you sparkle at the party and add a pleasant atmosphere! Powered by 3 LR41 button batteries are included and installed. 4 metal screws hold the battery cover tightly in place. These screws can easily be removed with a cross screwdriver when it is time to replace the batteries. so you can save the high-quality LED glasses for the next celebration. Brighter lights and very comfortable accessories to wear. see the world in a whole new way with these stylish LED Shutter Shades Glasses make the Perfect for Birthday Parties,Christmas, Party Favors, Camping Trips, Halloween, Glow Party, Weddings, Club, Party, Rave, Disco and More. These make a wonderful favor idea all your friends will love to remember the occasion. If you have any quality problem when using glowing glasses, please feel free to contact with our customer service for replacement, We believe that these glowing glasses can stand the test of anyone! Product description Batteries Replaceable Note: Powered by 3 AG3/LR41 type batteries are included and installed. 4 metal screws hold the battery cover tightly in place. These screws can easily be removed with a cross screwdriver when it is time to replace the batteries. Brighter lights and very comfortable accessories to wear.See the world in a whole new way with these stylish plastic glasses! Suitable for Wearing them in the night club,festivel ,party, any occasion and also can as gifts for friends. M.best Toy LED Glow In the Dark Shutter Shading Glasses.any party can resist showing off their style with these stunning shutter shading glasses.These make a wonderful favor idea all your friends will love to remember the occasion.