AB is inspired by interlocking burr puzzles. One row of it consists of 5 plywood elements. All parts stay together without the need of glue and nails.
It is part of "coordinate" collection. Coordinate because in order the row be assembled its parts must be moved together as a coordinate-motion (slide-together) structure. Once assembled the structure will stay stable even if one tries to move one or two of its elements. Disassembled this furniture occupies little space; as a result, it is very appropriate for frequent change of place. The level of difficulty in this case depends not on dexterity but mostly on spatial vision.
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