Adjustable Floor Guide Wall/Door Bottom Guide for Sliding Wooden Door, Black

Material: The robust carbon steel body and nylon roller ensure smooth and quiet gliding; Easy installation: No groove required for the door, no holes drilled in the floor; Size: Wheel diameter is 37mm; Suitable door thickness: 2.5cm-5cm; Practical and innovative design: The invisible rotating wheel on one vertical side not only makes gliding smoother and quieter, but also saves space.