T-Square Slider for 42"

This is a slider that can fit onto a MAYES Brothers Drywall T-Square. This is a way to extend the edge out 3 inches to make it easier to measure 42 inches instead of the 48 to where the T would normally be. This is very useful for Robot Inspectors for FRC's 2025 game Reefscape to help ensure that robots are not more than 42" tall.