The Von Duprin 299 Panic Exit Device Roller Strike is a commercial-grade door hardware made of metal with a matte black finish. It is designed in the shape of a bar and includes fasteners for easy installation. With a length of 2 7/8 inches and a height of 3/4 inch, this roller strike is suitable for commercial use and has an ANSI Grade 1 rating for the best level of security. Manufactured in Mexico, this product from Von Duprin is known for its durability and reliability in emergency exit situations.