Pixhawk 2.4.8 on Tarot 680Pro

I just purchased a Pixhawk 2.4.8 and in the kit it had two carbon fiber mounting boards with 4 rubber cushions for mounting the two boards , What and how do you use them, I have a Tarot 680pro I’m mounting the Pixhawk on.

Maybe this helps? The two boards form a single vibration-dampening mount, and you attach the pixhawk to the top.

Thanks Larsks, That is exactly what I was looking for.