MadBite Portable Fish Scale with Tape Measure (Mechanical Scale) The MadBite Scale with measuring tape weighs fish to 50 Lbs. / 22Kgs. Its large easy to read dial and drop down tape measure allows you to measure fish to 38 /100cm. Easily stowed away in your tackle box, or hung on your boat by the attached sturdy ergonomic handle the MadBite scale and tape measure is an affordable way of backing up your fish stories. The rear calibration knob allows you to set the weight at zero before each use. Simple sturdy construction allows for years of use. Similar to scales offered by Berkley , Eagle Claw and Mustad but at a much more affordable cost.