1、Excellent Aluminum Alloy Material: This car door reinforcement lock is made of excellent aluminum alloy material, which is sturdy and wear resistant, not easy to be damaged, and has a long service life. 2、3 Inch Size: This door reinforcement lock comes in a 3 inch size and can withstand up to 350 pounds of internal door opening force, which prevents the door from being kicked open. 3、Safe And Reliable: This door reinforcement lock adopts spring loaded closing anti tampering design, which can prevent children from misuse, safe and reliable. 4、Easy To Install: This door reinforcement lock press claw gives you very convenient, you just need to use the screws to fasten it to the door. 5、Wide Application: This car door reinforcement lock has a wide range of applications and can be used in homes, apartments, villas and so on.