Step 1:

Once you have removed the contents from the packaging and unscrewed the wooden lid you have 2 stick diffusers, a rotatable vent clip, a plugged  jar of scented oil, and a wooden lid with holes for the stick diffusers.

Step 2:

Carefully Remove the plastic plug from the jar of scented oil.  Place the open circle of the vent clip over the unplugged jar of scented oil with the rotatable vent clip against one side of the jar of scented oil.

Step 3:

With the vent clip is braced against the side of the jar, Screw the wooden lid onto the jar gently.

 

It is important to not over tighten the lid while attempting to line it up with the jar.

 

Once the lid is tight, back it up a pinch to line it up with the jar rather than force it.

Step 4:

Now that your lid is on and lined up, add your diffusers to te jar by sticking them into the holes at the top of the lid.

Step 5:

All done, clip it to your car vent and enjoy! The diffuser will consume quite a bit of the oil initially as it soaks into the wood. but fear not the scent should retain for quite some time.