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| In the 1950s, Franck Held developed a new type of javelin with a bigger diameter. It flies more efficiently. The javelin may be made of metal or wood, but it must have no moving parts what would change its center of gravity and make it easier to throw. |
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Made of light leather or nylon, they have
a maximum of 11 cleats 4 mm in diameter
12 mm long. |
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