The maximum height of a toy that can fit in a standard toy crane machine typically ranges from 8 to 12 inches (20 to 30 centimeters). This is because most crane machines have an internal clearance of about 12 to 15 inches (30 to 38 cm) from the bottom of the claw to the prize chute, allowing some space for movement. However, the exact height can vary based on the machine's design and manufacturer. To ensure a toy fits, it's best to choose items that are compact and not too tall, as overly large toys may get stuck or be difficult for the claw to grasp. Always observe the machine's interior before playing to gauge the available space and increase your chances of successfully retrieving a prize.