Notched Bracelet Pins with Tubes. 5 each of 12 lengths 10mm thru 21mm, 60 sets total.
Vellsar Watch Band Pins Tool Kit, 13mm Heavy Duty
The following sizes are in the set.
Watch Band Connecting Link Pins Tubes Assortment Stainless Steel
Watch Band Pin 22mm Spring Bar Pins 1.5mm Dia for Connects the
Pins and Tubes with Omega Style Notched Centers for Bracelets
1.2mm Notched Tube 0.9mm Capsa Pin Watch Band Strap Pin Bar
Notched Pin and Notched Tube Assortment for Watch Bands
1.0Mm Thickness Watch Pins, Watch Bracelet Pin
Notched Tube Assortment, -- ASTCAPS60: Star Time Supply
Measuring Watch Band Pins, Watch Band Pin Replacement
Watch Notched Tube Pin Assortment Kit Alloy Steel