The largest member of the family is a multi-carriage robot, approximately 3 meters long (in its three-car configuration), capable of climbing up to 2 meters in height. It is designed for deep subterranean exploration, engineering, and combat missions, integrating advanced systems for obstruction removal, drilling, camera insertion, firing mechanisms, and multi-sensor scanning. Tavai combines research, combat, and engineering capabilities, making it ideal for complex underground operations.