From his very proper manner and his anxiety about the protocol of human-cyborg relations, C-3PO sometimes comes across as a servant rather than a faithful ambassador. He was built by the young Anakin Skywalker (who was later transformed into Darth Vader). This 3.75-inch-tall C-3PO wears his full suit of armor. He can move stiff-legged at the hips, his head rotates, and his arms move at the shoulder. His left arm is detachable. The accompanying "flashback photo" shows the dazzling, golden droid of the later Star Wars films compared to his earlier, skeletal self in Episode I.