Development kits are sets of tools and resources that help developers create software or hardware applications. They typically include components like sample code, libraries, and documentation, making it easier to build and test new products. These kits are often designed for specific platforms, such as Android or Arduino, allowing developers to focus on their projects without starting from scratch. Many development kits also come with hardware components, such as sensors or microcontrollers, enabling hands-on experimentation. They are widely used in industries like IoT (Internet of Things) and robotics, providing a practical way for engineers and hobbyists to innovate and prototype their ideas efficiently.