| 摘要 |
The toy consists of one pyramid-shaped block (1) and several square blocks (2), each with a central passage bore. This permits the blocks to be thread on a non/elastic string (3), esp. of natural or artificial fibers. The ends of the string each have a loop (4), for suspension from holders (5) esp. in the interior of a car. Diameter and characteristics of the string supply a set resistance, which permits vertical movement of the blocks along the string and any chosen position.
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