Ensure the smooth operation and longevity of your sliding doors with our wheels. These anti-falling wheels are designed to prevent door sagging and provide stable support. Ideal for use with garden doors, garage doors, and other sliding , they can be easily installed at the bottom of your door to maintain alignment and prevent any operational issues. Features -Color:Black -Material:Steel + Nylon -Size: 8.00X2.60X2.00cm/3.14X1.02X0.79in -The robust build of this product ensures support, effectively preventing any door sagging long-term durability -Designed with universal compatibility in mind, this item fits a wide range of sliding door models, offering a versatile solution for various configurations -By maintaining the door's alignment, this product ensures smooth and reliable operation, preventing any issues related to door sagging -Installation is and requires minimal tools, allowing for a quick setup process that handle -Equipped with nylon rollers, this product ensures smooth and quiet door movement, significantly reducing noise and friction Package list: 5 bottom roller