Extremely portable and lightweight. Comes coiled in PVC dispenser less than fifteen inches in diameter and lighter than one pound. Non-conductive polypropylene coated fiberglass won't rust or corrode as with metal fish. Rectangular snake will accommodate 90 degree bends in 3/4 inch conduit and can easily penetrate blown-in insulation. Can be bent 180 degrees within a 3 inch radius but retains memory to a straight line.