This safe eraser is for storing tiny items. Sections of the eraser have been removed. And sections of the eraser were removed. High-quality electrical black 3 M tape put on the inside covers the small hole on the one end of the picture 5. While opening and closing the plastic hinge is rigid but that's the natural way it functions. This item friction suits to close it, just use any flat key or like item to open = see instructions for explanation. See all the pictures and read out the definition.