This is a (very close to) exact replica of the Stihl 4203 182 0801A Blower Throttle Thumb Lever, modeled by me in Fusion after taking measurements from the OEM part. Have not tried the printed version yet to see how well it works. Some areas may need reinforcement if printed via FDM, particularly the tab that limits travel. Best printed vertically with large layer height and high temps for strength.