What is this mainly used to protect and support package corners during transportation and storage of goods. Widely used in protecting valuable paintings artwork picture frames books and more to protect corners from crushing deformation and breakage. Are there any advantages of the product the material is thicker and harder which can provide good protection for the corners of the goods. Uniform thickness can keep stable compressive and tensile strength and enhanced overall strength. The inside edge of the protector is made of good fiber sandpaper is wear-resistant high friction coefficient and is not easy to slide. The outside of the protector is made of brown packing cardboard it has a good texture and can be moisture-proof making it stronger than ordinary corner protectors. The weight of a single corner guard is about 10g which is very light and will not increase the packaging weight. How to use it easy to operation just place the corner protective strip on the edge of the packaging box. What should i notice the product is an l shape corner protector please choose the fittable size items for your packing.