-This 13-foot, inches graduated Crain CR Series Leveling Rod incorporates many features, including: a rectangular shape with rounded back corners for better gripping, a scale width graduated to fill the entire face of the rod, and a measuring scale on the back side that allows for overall height readings. The top section also features a 1/4 x 20 female adapter. -This 3-section leveling rod is made of strong fiberglass - which is waterproof and corrosion-resistant. Special molded stand-off ribs protect the scales from wear. -Crain CR Series Leveling Rods are perfect for laser detector mounting - no special brackets are required. -And, unlike aluminum rods, the CR Series is non-conductive. -The rod collapses to 58-3/8 inches - for convenient storage. -Weighs 5 lbs