[Material] The box is made of paper+PET material, which is sturdy and durable to keep your cake upright. Our boxes are perfect for personal or commercial use to transport your baked goods from one place to another. [Transparent Window Design] The top of each cupcake box has a transparent window, which is perfect for quick viewing and identification; great display of exquisite cakes and sweets. [Easy to Use] The cupcake boxes and trays are easy to disassemble and assemble, they can be folded into a flat form for easy storage, take up less space, and are very convenient for any collection and assembly. [Package Included] Our set includes 20 cardboard cake boxes. The dimensions of each box are 15x15x3.5cm. Our boxes come with inserts that can hold 16 individual cupcakes or can be removed to hold a single cake. [Package Included] Our set includes 20 cardboard cake boxes. The dimensions of each box are 15x15x3.5cm. Our boxes come with inserts that can hold 16 individual cupcakes or can be removed to hold a single cake.