Equipped with 3 preset holes (7.5" model) or 4 holes (9" model) for flexible placement to fit a variety of gate styles and post thicknesses The smooth sandblasted oxide surface provides an elegant touch similar to premium electronics while ensuring durability against abrasion and weather Compatible with sliding / swing doors, double gates, fences, sheds, garages and more - perfect for gardens, driveways, stables, and patios Includes all necessary hardware for easy installation. Simply align and mark the drill point and secure with 8 screws for reliable protection Made of 4mm thick high-grade stainless steel, naturally resistant and long-lasting outdoor safety, Manufacturer: Netbiio