The Loop (Movies)
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|LEGO → System → Universal Building Set|
- Replacement keys (they are the part that breaks first) have been sold in the kits 1205 2 Keys for wind-up motor and 5004 Motor Keys.
- The shape of the junction of the key with the motor is based on a square section on the motor, but the key has a star section (combination of two squares rotated of 45 degrees) to allow easier insertion, every 45 degrees.
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