Transport large and heavy cakes safely and easily with this brand new corrugated cake box. These large extra deep cube cake boxes are available in various sizes, from 8"x8"x8" to 16"x16"x16", making it perfect for larger cakes that are both tall and heavy. These boxes are remarkably strong. The 16" cube box comes with a reversible insert to keep your cake in place and prevent it from touching the sides of the box. It also keeps the box sturdy so it doesn't wobble no matter how much it is transported. The insert is a 2 in 1. On one side the insert features round grooves, ranging from 14", 12" and 10". On the reverse side there are square grooves, ranging from 14", 12" and 10". So, no matter the size or shape of your cake, this insert has got you covered! The box is so durable, it can actually be reused time and time again for multiple cake projects. The box is last-longing and stays clean with thanks to the insert. Inserts can occasionally get messy but these are cost-effective enough to replace and we sell these individually as replacements for added convenience. Please note, only the 16" cube box includes the insert. Measurements: 8 inch box: 8" x 8" x 8" 10 inch box: 10" x 10" x 10" 12 inch box: 12" x 12" x 12" 14 inch box: 14" x 14" x 14" 16 inch box: 16" x 16" x 16".