Marvel Key Chain Shopping cart unlocker

My Print-in-Place keychain, featuring a Marvel-inspired design, comes with a retractable shopping cart unlocker fashioned after Captain America's shield.

Before its initial use, it is necessary to gently move the bottom part to the left or right to release it. Afterward, it should be slid back and forth several times until it moves more smoothly. If necessary, any excess threads can be removed with a screwdriver.