INIRET Adjustable Home Security Door Reinforcement Lock，Heavy Duty Zinc Alloy Door Lock,Childproof Safety Door Lock，Security Device for Enhanced Safety,Prevents Unauthorized Entry (1, Black)

【Heavy-Duty Construction】 Made of sturdy aluminum alloy, the door reinforcement lock resists up to 800 lbs of force for strong anti-theft protection. It significantly increases home security and serves as a thoughtful, practical choice for your family. Warm tip: check size compatibility with your door before buying. 【Adjustable Knob Design】 The home security door lock features a height-adjustable knob with an 8 mm maximum range. Rotate the knob to ensure the lock fits tightly with the door for optimal use. 【Easy to Use】 Pinch the top and bottom grooves with your thumb and forefinger, pull to the side, and swing away from the door to open. Reverse the actions to close; step-by-step instructions are shown in the product images. 【Home Security & Childproofing】 The child-proof door lock adds extra security for toddlers while you're away on business. Its spring-loaded design prevents children from opening the door to unknown people. It provides protection for children when you're not present and makes the elderly or ladies feel safer when home alone. 【Check Before You Buy – Easy Door Compatibility Test】 This lock fits most inward-opening residential doors. Ensure your door opens inward, has a flat interior surface, at least a 1/8" (3mm) gap between the door and frame, and a frame wider than 1" (25mm). Not suitable for outward-opening, sliding, glass, or double French doors without a center frame.

• 【Heavy-Duty Construction】— Made of sturdy aluminum alloy, door reinforcement lock resists up to 800 lbs of force (e.g., kick-ins) for strong anti-theft protection. Not only does it significantly increase the security of your home, providing you with peace of mind, but it also serves as a thoughtful and practical choice for your family. Warm Tip: Check size compatibility with your door before buying
• 【Adjustable Knob Design】— The home security door lock is equipped with a height-adjustable knob. You can rotate the knob to the appropriate position according to the door condition (maximum adjustment range: 8 mm) to ensure the lock fits tightly with the door for optimal use
• 【Easy to Use】— Use your thumb and forefinger to pinch both the top and bottom grooves, pull to the side and swing away from the door to open the lock. Reverse the actions to close. You can also see a step-by-step instruction in our pictures
• 【Home Security & Childproofing】— Child proof door lock adds extra security measures for toddlers while you aways on business. This door reinforcement lock has a spring-loaded design to prevent children from opening the door to unknown people. This lock for door inside can provide protection for your children when you are not with them, it also makes the elderly or ladies feel safer when they are at home alone