Infant Car Seat Belt

seat belt
a safety belt used in a car or plane to hold you in your seat in case of an accident
A seat belt or seatbelt, sometimes called a safety belt, is a safety harness designed to secure the occupant of a vehicle against harmful movement that may result from a collision or a sudden stop.
(Seat Belts) The most common form of lap belt is the Velcro Strap.
A belt or strap securing a person to prevent injury, esp. in a vehicle or aircraft

infant
A person who has not attained legal majority
baby: a very young child (birth to 1 year) who has not yet begun to walk or talk; "the baby began to cry again"; "she held the baby in her arms"; "it sounds simple, but when you have your own baby it is all so different"
An infant or baby is the very young offspring of humans. A newborn is an infant who is within hours, days, or up to a few weeks from birth.
A very young child or baby
(infancy) the early stage of growth or development
Denoting something in an early stage of its development

car
A vehicle that runs on rails, esp. a railroad car
a motor vehicle with four wheels; usually propelled by an internal combustion engine; "he needs a car to get to work"
A railroad car of a specified kind
the compartment that is suspended from an airship and that carries personnel and the cargo and the power plant
a wheeled vehicle adapted to the rails of railroad; "three cars had jumped the rails"
A road vehicle, typically with four wheels, powered by an internal combustion engine and able to carry a small number of people