Stars Wall Decals total contain: 11 x 11 inches per sheet, total 3 sheets,the large stars pattern size : from 9.2"H x 5.6"W to 1.5"H x 0.7"W,the small stars pattern size : from 1.2"H x 1.2"W to 0.8"H x 0.9"W How to Use: Place the Dark Stars Wall Stickers in a well-lit area under a bright light for at least 20 minutes, then turn off the light and the glow-in-the-dark sticker will glow at night for up to 1-2 hours Adhesive Glow Stars Wall Art: Self adhesive, easy and convenient to use, removable without sticky residue Wonderful Light Up Star Stickers Decals : Does your child need company to fall asleep? Decorating children's room with Glowing Star Stickers in sleeping time,your kids fall asleep in a warm atmosphere Easma Luminous Stars Ceiling Decor Sticker can be applied any smooth and flat surface,wall,glass,ceiling,kids bedroom,living room,bathroom,bedroom,playroom,kitchen,office,which can create a beautiful luminous sky for you