Turn the bidet over. You'll see under each circular opening that there are 4 spaces where you can insert the non-slip pads. These pieces help prevent the bidet from shifting around on the toilet.
On the bidet you’ll see two big circular openings. Insert the disks here.
The slots on the disks should align with the screw holes on the toilet.
A centered bidet = an accurate spray. Push the bidet as far back on the toilet as possible. Position it so the bidet sprayer aligns with the center of the toilet bowl.