Rivets are 3/8 - 1/2" tall , and have a 11 mm cap .
We are only selling these as addition to our cork, leather and faux leather labels .
They will not be shipped separately .
They are sold in sets and each set contains equal number of posts and screws .
For example : if you order 1 Set of 25 you will be receiving 25 posts + 25 screws .