YKK 18 inches Size 4.5 Brass Metal Donut Pull Closed End Zip - Brittle Gold #828

A size 4.5 brass metal separating zip which features teeth that measure approximately 4.5mm wide when zipped.

18 inches (approx 46cms) long with a closed end.  This is a one way zip (only has one slider).  Tape is made of polyester and has a 3/4 inch top and bottom extension.

This metal zip can handle a little heavier tasks.  Most frequently used for bags.

YKK - quality brand.