Crazydeal Curtain Home Fridge Decor Useful partical Butterfly Shape Sticker Pin Glow in the Dark Ornament We don't offer color choice. Your order will be sent in colors at random. Best Gift For Your Children Or Your Friends. Attach the enclosed mini two sided stickers and stick one side and the other side to a clean and smooth surface. At night, turn on your room's lights for the sticker to get "charged". After 5 minutes, turn your lights off and you will see your sticker shining brightly as shown in the picture above.