Abstract: A transparent housing arranged for interfolding includes a cavity accessed through open end walls and transparent side, bottom, and top wall structure. The device mounts a rigid rod within the housing for training of suturing within a body cavity, wherein the top wall of the housing includes resilient clamping structure to secure simulation skin to the top wall of the housing for assisting in suturing. Upon removal of the rigid wall, hinged inter-relationship of the side walls, top wall, and floor of the housing permits interfolding of the housing for ease of storage and transport.