Firefly Kit - Fin Alignment

Here's a "School Rocket" from a company I'd never heard of before:

You can check out the Aeroracers Firefly Rocket -  HERE

This listing was seen on EBAY.

From the Manufacturer's product description:

The FireFly comes with the patent-pending, laser-cut FinLoc that allows the students to glue the fins and launch lug to the rocket body straight every time.

You can see the "FinLoc" on the base of the completed rocket. I don't know if it stays on the rocket for flight or not.