A custom pulley designed for my finger-servo project! This is a modified GT2 6mm, 20-tooth pulley that perfectly fits the MG90s servo. I printed it using PLA with a standard 0.4mm nozzle and a layer height of 0.2mm, with a slower print speed. The pulley fits snugly on the servo shaft and stays securely in place even without a screw. To fully secure it, just use a 6mm M2.5 screw.