HIGH-QUALITY MATERIALOur stainless steel safety chain is cast from high-quality stainless steel and zinc alloy under strict production process. The product is polished and electroplated, it is not easy to rust, and the color is uniform and bright, hard and durable. HIGH ANTI-THEFT PERFORMANCEThe case made of high-quality wear-resistant PU leather wear connected to the stainless steel base of the security door chain reduces the impact of the chain link on the facade; Whether it is stainless steel or PU leather case, we are made of thicker materials, which greatly improves the anti-theft performance. ERGONOMIC DESIGNOur products are responsive smooth and burr-free, anti-friction, anti-chemical and smoke. Due to the very precise and high quality production requirements, they can ensure quality and durability in wet weather and have a long service life. WIDE APPLICATIONThe chain lock allows you to partially open the door to identify visitors or receive packages. The door lock helps identify the caller before the door is completely released, providing more reliable protection for your home security, suitable for families. door of an office or other place. SAFETY AND CONVENIENCEOur products have no sharp corners or edges, which can prevent children from being hit and injured at the House; our products are also very conducive to children's personal safety and can prevent children from going out to explore secretly. CONTAIN:1*safety door chain6*screws