The limiter design of this floor guide provides exceptional stability and safety for your sliding doors. It effectively prevents unwanted movement, ensuring that your doors remain securely in place. This feature is particularly nice for maintaining the smooth operation of your doors over time. Features -Hole spacing: 14mm, 27mm -Hole diameter: 4mm -Color:Black -Material:Plastic -Size:4.50X2.60X1.80cm/1.77X1.02X0.71in -Strong material: constructed from plastic, this floor guide is built to withstand daily wear and tear, ensuring longevity -Noise reduction: floor guide reduces noise during operation, providing a quieter and more pleasant environment -Enhanced safety: sliding barn door floor guide prevents the door from derailing, offering added safety for households -Universal fit: designed to fit a wide range of sliding doors, including barn doors and pocket doors, making door floor guide a versatile choice for any setting -Simple setup: sliding barn door floor guide, allowing for a straightforward and quick installation process Package list: 4 x sliding door guides