Miniature Pocket and Rivets on Jeans. The smallest pocket in your jeans could barely fit your finger and that's because it was originally meant for a pocket watch. As for the rivets, they look like pointless buttons but they're actually there to reinforce the seams of the pockets. Pockets are vulnerable to rips so this greatly improves the item's endurance.
This shit again?
again and again and again and again and again and again and again and again and again and again and again and again and again and again and again and again and again and again and again and again and again ...
#14 That hole is used to extract the key lock when the key is in it so you can rekey the lock to another key - you oil the lock through the key slot. That's where the pins are.