Seatbelts are safety devices found in vehicles that help protect passengers during a crash. They work by keeping people securely in their seats, reducing the risk of injury. When a car suddenly stops or collides with another object, the seatbelt prevents the body from being thrown forward, which can lead to serious harm. Wearing a seatbelt is not just a good idea; it's also the law in many places. Traffic laws require all passengers to buckle up, and doing so can save lives. Always remember to fasten your seatbelt before starting your journey to ensure a safer ride for everyone in the vehicle.