Books on an open shelf, even in solid binding and quite thick, usually strive to fall. Simple stops resembling the form of Egyptian pyramids will ensure a stable position of books of any format.
The material for stops is an outflow of 3-4 mm thick. The base of the M-shaped shape is bended from the blank of 130×300 mm, heating it along the fold line, for example, a hot air stream using a construction hair dryer. Each pyramid is glued with dichloroethane or other special glue of 4 triangular parts with dimensions of 105x130x130 mm. For stability, the pyramids are filled with cement or gypsum solution. Pyramids are attached to Mr. To do this, a threaded-hawic till is placed in a still hardened solution.
