容易插入的拉锁 / Easy-in Zipper

Traditional zipper sometimes can be difficult for the user to use because of its small entrance on the slider. When the user has weak eyesight or shaked hands it can be difficult to insert the insertion pin boll into the slider.
The new designed zipper improved the shape of the slider. The back of the slider has been extended so the user can slide the insertion pin boll along the extension part into the slider without having to find the entrance of the slider.