Chicago Screws,LANMOK 120 Sets 5mm Silver Chicago Buttons Assorted Kit Screwing Fasteners Metal Accessories for DIY Crafts Leather Belts Bookbinding;

These Chicago screws are perfect for bookbinding the invoices, flash cards,photo albums or documents.
Package includes:
120 sets 5mm screw posts for 4 sizes(Each size including 30 sets.)
1 transport plastic storage box.

Specification:
Color:Silver
Material:Carbon steel.
Length:6mm,8mm,10mm,12mm,the button diameter:approx 5mm

Warm Notice:
These screw posts are very small,keep it away from the kids avoiding swallowing by mistakes.
If you are first try, you might can use some tools to help you screw all the screws,such as screwdriver.