The Spencer basket stretcher has been studied to confront the most difficult of emergency situations. It is ideal for rescue operations in mines, at altitude and in water. A revolutionary technique which ensures uniform thickness of the entire length of the stretcher. The stretcher is in high-density polyethylene and is joined to an aluminum framework to consolidate its strength. The handles for transport, are placed along the entire perimeter. Twin Shell stretcher can be transversally divided in half to improve the storage and transport. To ensure a perfect hold between the two shells, four nylon cones and a security system protected by a protuberance placed in the mould itself, have been inserted.