A license plate holder is an accessory designed to support and secure a vehicle's license plate. Different variations exist based on material, shape, and function. Generally, a license plate holder is a frame attached to the rear or front of the vehicle to hold the license plate in place and protect it from damage. License plate holders can be made of materials such as:

Plastic : Lightweight and durable, they are the most common and come in many colors and styles.

Metal : More durable and often used for a more elegant or sporty look. They can be made of aluminum, stainless steel, or other metals.

Carbon : Lightweight and resistant material, mainly used in sports for a high-performance touch.

Rubber : Used to provide greater flexibility and impact resistance.

License plate holders may also have additional features, such as anti-vibration protection, which reduces noise or damage caused by vehicle vibrations while driving.

Often, in addition to their primary function, license plate holders can be customized with logos, messages, or unique designs to match the vehicle's style or the owner's personal tastes.