V Kzip -

: The width of the teeth in millimeters (e.g., a "Size 5" zip is 5mm wide); this number is often stamped on the back of the zipper head.

: The curved/rounded part of the zip head should face upwards , while the flat part stays at the bottom. V Kzip

: The movable piece that actually opens and closes the track. : The width of the teeth in millimeters (e

: Ensure the raised teeth are facing upwards before attempting to slide the head on. V Kzip