Box Blox corners can be made of PU, PE or polystyrene. They’re suitable for packaging products like furniture, computer monitors and odd-shaped products.
Package Depot, Inc: Adhesive box corners
Patented Box Blox corners from Package Depot (Louisville, CO) can be placed anywhere inside a container for product protection. Corners store flat until folded into a 3-D unit; a release liner is removed to expose the adhesive that secures corners inside containers.