Two Corner Tubes with Mirror
The student sees straight in front of him and brings one mouth of the corner of the plastic tube (inside there is a mirror) near his eyes. Turning the corner can be seen up, down, right, left.
2.5
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Two Corner Tubes with Mirror
The student sees straight in front of him and brings one mouth of the corner of the plastic tube (inside there is a mirror) near his eyes. Turning the corner can be seen up, down, right, left.
2.5