Answer:
I believe it weighs about 100 grams.
if not it might be kilograms or milligrams, which both I highly doubt.
I think 100 grams is too high because: a kilogram weighs about 2.2 lb on earth. Therefore, 100 grams or 1/10 kg weighs about.22 lb. That more than one-fifth of a pound! Way, way too much. To find out the correct answer, weigh the entire contents of a full box of these pins and then count and divide.