COMPLETE BOXES OF 100 UNITS FOR SALE. Materials The quality of these Valentine's boxes is guaranteed. Rest assured that you are using the best box on the market, as our Valentine's boxes are made with coated graphic cardboard ranging from 275 to 450 grams/m2. These boxes not only ensure durability but also add elegance, becoming the perfect canvas for your most special cakes. Because we are convinced that your cake inside our box will become a unique expression of love. Valentine's Box 20x20x8: Perfect for a small heart-shaped cake to enjoy as a couple. Box of 150 units. Valentine's Box 23x23x8: Perfect size for when two couples of friends decide to get together for dinner and share stories of how they met. Box of 100 units. Valentine's Box 26x26x26x8: These are ideal for when Valentine's Day is celebrated with the family, including the little ones (and not so little ones). Box of 100 units.