There are many complaints in the reviews about the size of the luggage racks (diameter). It is _exactly_ as stated: 20 g. For those who fear they will be too small to break through the cartels, most likely they will. The people who wrote these reviews have nothing to complain about: they ordered the wrong size. 20g is the standard size for earlobe/earring piercings, which is smaller than the standard Cartelidge size, 16g (pierced correctly and safely at the piercing salon, not dangerous at the mall with a piercing gun that pierces 20g earrings!) I just took them off after 2 days of wearing, and it seems one of the backs came off once. I'll have to see how it goes over time, maybe it was an accident but the price doesn't bother me too much. I only wear them to work where there is a limit to the number of earrings I can wear in each ear!
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