|"Are you a wizard or not?"
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- "He pulled a long tape measure with silver markings out of his pocket...He measured Harry from shoulder to finger, then wrist to elbow, shoulder to floor, knee to armpit and round his head...Harry suddenly realised that the tape measure, which was measuring between his nostrils, was doing this on its own. Mr Ollivander was flitting around the shelves, taking down boxes. "That will do," he said, and the tape measure crumpled into a heap on the floor."
- —The tape measure measures Harry Potter[src]
Magical tape measures are measuring devices that are capable of moving of their accord, so that the owner may perform other tasks while taking measurements.
- Harry Potter and the Philosopher's Stone (First appearance)