These are some left-over findings from my jewelry days.
The first is a bag of lobster claw clasps. They measure about 14mm x 7mm and are made of stainless steel. The hole measures just over 1mm. I estimate there are over 150 pieces in this little bag.
The second bag contains open jump rings. Outside diameter measures about 7mm and I think they're 16 gauge and I believe they're silver plated copper. I have no idea how many are in this bag but probably over 200 pieces.
The third bag contains wire end caps for leather media. They are made of stainless steel and are over 12mm long x 4mm wide. The hole measures over 3.5mm. These are normally glued to leather and rubber media. There are well over 100 pieces in this bag.
The next bag contains small boxes of bead caps. I think they are silver plating over pewter. They're 8mm wide x 6mm tall and have a 2mm hole. There are 6 boxes of 24 and 1 box of 22 in this bag.
The last 2 boxes contain earring findings (no wires) and miscellaneous silvertone beads.