Like most humanoids, Balosars come in a variety of shapes and sizes, but what sets them apart from humans are the antennapalps on top of their heads. These were sensory appendages that granted them sensory information than would be available to your average human. They were susceptible to Jedi mind tricks, as Obi-Wan Kenobi found out when he helped death stick-dealer Elan Sleazbaggano straighten his life out.