YKK Size 5 Open Ended Molded Plastic 14 inch (35.5cms) Jacket Zip - Dark Grey #578

A size 5 molded plastic separating zip which features teeth that measure approximately 5mm (1/4 inch) wide when zipped.

14 inches long (35.5cms) with an open end.  This is a one way zip (only has one slider), and separates at the bottom, jacket style.  

Most frequently used for parkas, jackets, hoodies, sportswear, fleece jackets and bags. 

YKK (Vislon) - quality brand.