These rubber magnets are supplied in packs of 1000 pairs and are used as light duty file closers.
The closer patches are all 0.5mm in thickness.
Uchida VS-200 Twin Head Paper Drill
CLEARANCE - Banner Eyelets VL-70 15.5mm Brass
CLEARANCE - Edgemaster Blades
CLEARANCE - Elasticated Loops
CLEARANCE - Leathergrain Card Covers A4 - Pack of 100