These Triangular Postal Tubes measure 485 x 170 x 170mm and are ideal for shipping a variety of products. Made from high-quality cardboard, these postal boxes offer a robust and reliable solution for your shipping needs. Their triangular design not only adds an extra layer of structural integrity but also makes a statement in the world of standard postal packaging. They’re also quick and easy to assemble and are 100% plastic-free, recyclable and biodegradable, delivered flat-packed, and sold in bundles of 20.