General description The Adjustable Floor Guide is designed for sliding wooden doors, providing a sturdy and innovative solution for smooth and quiet operation. Technical specifications Material: Carbon steel body with nylon roller Wheel diameter: 37 mm Suitable door thickness: 2.5 cm - 5 cm Installation No groove required for the door No holes need to be drilled in the floor Usage Ensures smooth and quiet sliding of wooden doors Space-saving design with an invisible rotary wheel