# Forearm Girth

• Step 1: Identify the largest part of an arm area between elbow and wrist.
• Step 2: Use the circumference tape tool to measure around the forearm girth, making sure to keep the tape measure flat.
• Step 3: Compare this measurement with the 3D scan output and see if it is comparable. If it is vastly different, replace the 3D scan output with your measured value.