FEIHS 4 Pcs Security Chain Door Lock,Suitable for All Types of Doors

• Package Contents: This set comprises 4 stainless steel security door chains for domestic use, each fitted with dedicated fixing screws. The ample quantity ensures suitability for diverse scenarios. Featuring a sleek silver finish with a refined texture, it complements various interior styles including homes, hotels, apartments, and offices
• Durable Construction: Crafted from stainless steel with solid, one-piece chain links for robust build quality. Multi-layer electroplating effectively seals out air and moisture, resisting rust, deformation, and fading. Maintains a lustrous finish over time, suitable for humid or arid environments
• Sealed Link Design: Each link connects seamlessly with a closed-end construction, preventing chain loosening or disengagement while blocking foreign object ingress. Paired with a smooth-gliding mechanism, it ensures effortless operation without jamming during door opening/closing
• Safety and Convenience: The 18.5cm chain length provides a secure yet reasonable opening gap. This facilitates ventilation and external observation while effectively deterring forced entry, reinforcing security. The main plate measures 8.5x3.5cm and the secondary plate 4.8x2.5cm. Once installed, they lie flush with the door, occupying minimal space and not impeding normal door operation
• Versatile Application: Designed for all door types, it suits front doors, hotel rooms, apartments, and office entrances. Also effective on main gates, wooden doors, and interior doors, enhancing security for homes, offices, and lodgings. An essential item for daily safety protection

Features: 1. Features 4 stainless steel door chains in silver finish. Chain length: 18.5cm. Main plate dimensions: 8.5cm × 3.5cm. Secondary plate dimensions: 4.8cm × 2.5cm (tolerance ±0.1cm; actual product dimensions prevail). 2.Constructed from stainless steel for rust and deformation resistance; includes dedicated fixing screws for secure installation. 3. Suitable for: Front doors, hotel rooms, apartments, office entrances, main gates, wooden doors, interior room doors, etc. Specifications: Product Name: Door Chain Color: Silver Weight: 240g Product size: Refer to images for detailed dimensions. Warm notice: - When opening the door for ventilation, slide the chain to its maximum extension to ensure a safe opening gap. When closing the door, reset the chain to ensure the door is fully closed and locked. Avoid forcefully pulling the chain to prevent deformation or breakage of the chain links, which could compromise safety. - During installation, ensure the main and secondary plates are securely fastened to prevent chain detachment due to loose fittings. - Regularly inspect screw tightness and chain connections. Should any looseness occur, promptly retighten screws to guarantee operational safety. - If you have any problems, please contact us immediately, we will reply quickly within 24 hours. Packaging includes: 4 Pcs Door Chain