To unlock the battery compartment of the Kid Trax 12v Dump Truck, it has these small tabs that I had to use a really wide flat head screwdriver to open. I got tired of only being able to open and close it this way so I designed this model to replace it so myself or anyone could open or close the battery compartment.

You can print in basic ASA like I did, I'm sure PLA would work fine as well since it's normally stored inside being battery powered