- Design and function: fan-shaped handle for easier door entry and better control; the multifunction set provides reliable operation across common access scenarios for authorized users. - Practical portability: 9 cm x 3.5 cm x 0.1 cm and 35 g; slim, lightweight tool that fits easily in a pocket or bag for quick access. - Universal compatibility: opens standard doors, warded locks, and mortise locks; color‑coded warded keys enable quick selection; intended for emergencies and routine building access by authorized personnel. - Material and durability: crafted from high‑quality stainless steel; wear- and corrosion-resistant for long-lasting performance in challenging environments such as damp or dusty spaces. - Use scenarios: facility maintenance staff performing service calls or routine access; hotel or property management requiring authorized entry; emergency responders or security teams needing rapid, permitted entry.