The Genie Safe-T-Beam Garage Door Opener Safety Sensors GSTB-R are modern, durable sensors designed to ensure the safety of your garage door. Made from a combination of plastic and steel, these sensors are built to last. With a sleek design and easy installation, these sensors provide peace of mind for your home and family. The Genie brand is known for its quality and reliability, making these safety sensors a great addition to your garage door system.