The Tesla Model 3 offers a surprising amount of space in the trunk. In addition to the large compartment under the cover, there is a deep pocket on the left. Unfortunately, this isn't deep enough to stow objects in such a way that they don't roll out in curves.
This divider attaches to the left side of the Model 3 trunk with Velcro. It can be attached or removed in a few seconds - as required. This allows the storage space of the Model 3 to be used better and objects no longer fall around in the trunk when you are having more fun cornering.