This marlin spike has a length of 16 inch, plus it weighs 1.8 pounds and is not insulated. It meets the standards for ANSI, ASTM A342, DIN, DOE, Federal, FM, GSA, Military, MSHA, NFPA, OSHA. In addition, it is made of nickel aluminum bronze, has a metric/SAE measurement type, is corrosion-resistant, plus it is non-sparking, is non-magnetic, and is not tether ready with a plain grip.