FIRST Tech Challenge Sizing ToolThis jig takes all the guesswork out of sizing a FIRST Tech Challenge robot. Description Specifications Documentation Want to ensure your robot is within its legal size? Remove all doubt with the FIRST approved FIRST Tech Challenge Sizing Tool used at the Championship. Simply slide the sizing jig over and around your robot. If the tool hits your robot it's time to make some changes to the robot. This nifty tool collapses nearly flat making it easy to