Adjustable Floor Guide, Wall/Door Bottom Guide for Sliding Wooden Doors, 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.;