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 safely. Booster seats help protect children in the event of a car accident by ensuring that the seat belt rests across their chest and lap, rather than their neck and stomach. Booster seats come in various styles, including high-back and backless options. High-back booster seats provide additional head and neck support, while backless booster seats are more portable and easier to store. Both types are essential for keeping children safe while traveling in a vehicle until they reach the appropriate height and weight to use a seat belt without a booster.