How to install the Nachfolger HY5 car seat

Here is a video by Nachfolger that demonstrates the installation of the HY5 inflatable car seat.
The Nachfolger changes the portability game. This innovative design from Germany allows you to inflate your car seat within two minutes when it's ready for use, and deflate it when you're done. Designed for children aged 0 to 5 years old, this new generation of car seats will keep your child rear-facing for much longer, which is proven to be the safest way to transport a child.
Fastens easily using a normal three-point seat belt. There are two shoulder belt positions and an adjustable headrest to adapt to your growing child. LED technology warns in case of a fall in air pressure.