A simple low cost robust stretcher that can be deployed very quickly. X Ray transparent.(One tiny stainless spring in each buckle.)Can be dragged along floors narrow corridors up companion ways along sewer pipes up railway embankments across open ground - the skin is low friction does not ruckle or snag and the unit weighs in at under 6 kg.Fast fitadjust buckles rated at 200K. Six easy grip Carry handles. All Closure/Carry handles user replaceable.