CholecystectoSIM is a training model on gall bladder removal. Cholecystectomy training model with a real look, feel and touch of the gall bladder anatomy, includes visual landmarks of the operating surrounding. Its aim is to train and improve skills with the Cholecystectomy procedure. The model can be used as a stand-alone with any laparoscopic training box, and specially design for Medisimu laparoscopic trainer, or with the Liver module to train two trainees together, one elevate the Liver and one do the removal of the Gallbladder.