Description The Door Sequencer for Fire Doors is a must-have accessory for any narrow space, such as hallways or corridors. Its durable and reliable construction ensures long-lasting performance. With its automatic door closing design, it provides convenience and efficiency. Features -Color:silver -Material:Metal, plastic -Size:15.50X14.00X2.00cm/6.09X5.50X0.79in -The product is made of durable material. It provides additional safety and security measures. -It features a convenient design with automatic door closing mechanism. -The product is suitable for installation in narrow spaces such as hallways. -The design makes it convenient and quick, eliminating the need for manual operation. -The product is versatile and can be used for various door installations.Package list: 1 x Door Sequencer