These 4 MINIs have been trained to work together as unit, even when one of them is needing the help themselves. Thus, they are very hesitant to break up such a crack squad of healers.
However, because these 4 are so specially trainned, they require their own operating theater. With the set, you not only get the pine base and board, but also a shipping case that doubles as a set for the HLPRs and comes with posable medical stations too!