Clear Window & Stickers: Heart-shaped cake box with transparent window, cute and practical, you can see the food inside through the window, simple and elegant; 12 stickers for 12 cake boxes. Easy to Assemble: Muffin boxes Follow the steps shown in the picture, fold along the creases of the box, and in no time you'll have a cute little square box that works well for holding cakes. Environmentally Friendly: Muffin boxes are made of environmentally friendly paper material, safe and non-toxic, can be recycled; Really sturdy and stays closed during transport; you can also add stickers to the box to keep it sealed. Wide Application: Cake boxes are suitable for parties, birthdays, graduations, Christmas, Thanksgiving, Halloween, weddings, anniversaries, party favors, festivals, festive celebrations and other occasions. Perfect Size & Packaging: 10 x 10 x 6.5 cm (3.9 x 3.9 x 2.6 inches), perfect for a few cookies, macarons and chocolate strawberries; packed with 12 boxes and 12 stickers, basically enough for everyday party favors.