Adjustable locks are versatile locking mechanisms that can be modified to fit various door sizes and security needs. They typically feature a design that allows users to change the length or position of the locking bolt, making them suitable for different applications, from residential doors to commercial settings. These locks often come with a key or combination system, providing an added layer of security. Their adjustable nature makes them a popular choice for homeowners and businesses looking for customizable solutions to protect their property while ensuring ease of use.