A booster seat is a type of child safety seat designed to elevate a child so that the vehicle's seat belt fits properly. It is typically used for children who have outgrown their forward-facing car seats but are still too small to use the seat belt alone. Booster seats help ensure that the lap and shoulder belts are positioned correctly over the child's body, providing better protection in the event of a crash. Booster seats come in various styles, including high-back and backless options. The choice between these types often depends on the child's age, size, and the vehicle's seating configuration. Many countries have specific laws regarding the use of booster seats, emphasizing their importance in promoting child safety while traveling in vehicles.