Specifically designed for 3.5 inch hinge systems with matching screws, it solve traditional single color accessory limitations, perfect for Americans styles home renovations The 6 piece set facilitates whole houses batch installations, solving contractors ' frequent restocking inefficiencies during professional construction Supports white label services for e commerce sellers needing compliant distribution solution Pre installed positioning slots enable " aligns and " installation, eliminating alignment issues and saving time during setup Made from 304 stainless steel with stamping technology, providing 3x better rust resistance The brushed finish ensures scratch proof and fingerprint resistant, ideal for high humidity coastal areas where hardware easily corrodes, Manufacturer: Bwuikim