The women's shot put event has been part of the Olympics since 1948. The shot put used in women's competitions weighs 8.8 lbs.
A woman's javelin weighs 600 g (21 oz)
A man's javelin weighs 800 g (28 oz)
600 gramms at least
600 grams
72.28 meters by Barbora Špotáková of Czech Republic in 2008.
600 grams
800 grams
7 kg
800g
500 grams
110 kg
A modern olympic men's javelin is 800 grams.
There is no official weight for middle school, it depends on area.
234 tons
600 gram
800 and 600 grams respectively