Corner Sentry Corner Protectors add a layer of protection to your industrial corners. They are created with a bright yellow flexible EVA material that adsorbs impacts and guards both the corner and the vehicle. Corner Sentry protectors bright yellow color also adds visibility to the area. It is tapered in order to provide protection to the corner while keeping a low profile. Corner Sentry Corner Protectors can be installed with mechanical fasteners or with Sentry cinch straps (not included) to square posts or concrete columns.