Pack of 4 Fire Retardant Gray 6 x 9 Inch Gray Foam Sharp Corners for Safety Package of 4 gray corners for safety proofing . Each foam corner measures 9 by 6 inches. Install on sharp corners in warehouses, factories, homes, etc. to improve industrial safety and home safety. Thick fire-retardant foam protects larger corners on shelving, doorways, machinery, day care centers, etc. Each is a 90 degree angle corner a 90 degree corner with a lip that is 2 3/8 inches by 2 3/8 inches on each side. Interior Lip Size 1.75 inches by 1.75 inches. A total of 5 feet of protection. Plan for safety. Reduce risks of injury. Cover sharp edges in schools, factories, warehouses, gymnasiums and more. Match corners to Cardinal Gates ' wide 48 inch long edge cushioning . Both corners and lengths are fire-retardant, thick safety products made to protect workers, customers and students from cuts, bumps and bruises. Attach with adhesive tape or glues designed for use with extruded foam. Made in USA. This item ships from a separate warehouse and may require extra time for delivery.