The dimensions for quality posts are:

A. Post diameter - 0.85 mm. This diameter will hold up well and not distort under normal wear.

B. Post length - 11 mm. This length will fit most earlobes nicely without being too long.

C. The locking notchshould be set in about 2mm from the end and should be smooth.

D. The tip should be smooth, well-rounded and highly polished.

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