Included in this assorted Rivet Pack are 30 various sized quality Rivets and Rivet Caps used to install tags to dog collars. You will receive a total of 30 rivets and one rivet punch 6 - Split Rivets 12 - Small Rivets with Caps (around 1/4") 6-gold, 6-silver. 12 - Medium Rivets with Caps (around 5/16") 6-silver, 6-gold. Included is a rivet punch that will not damage the rivets. Simply line up the Rivet/Rivet Cap, and give the Rivet Punch a tap with a hammer and the rivet will set. Rivets have many other uses.