What is a noodle?
A noodle is a styrofoam pool flotation toy. It looks like a brightly colored, 4′ long cigarette and is cut to the width of the car seat and used under the foot of a rear-facing car seat to help achieve a correct recline angle. You can use up to 3 in a pyramid shape under the car seat. Nothing should be placed under a forward-facing seat. A piece of single layer rubber shelf liner is OK on slippery auto seats.
A noodle is a styrofoam pool flotation toy. It looks like a brightly colored, 4′ long cigarette and is cut to the width of the car seat and used under the foot of a rear-facing car seat to help achieve a correct recline angle. You can use as many as you need, but usually up to 3 in a pyramid shape under the car seat are the most needed. Nothing should be placed under a forward-facing seat. A piece of single layer rubber shelf liner is OK on slippery auto seats, but is very rarely used anymore. The car seat manual will provide guidance on what vehicle seat protectors may or may not be allowed.