Pen tool clipping path is very important part in Adobe Photoshop, that is globally used to erase or remove background or change the studio background from the subject. For eCommerce sites this is pretty much essential things. We always use pen tool to draw the images and 100% hand made paths.
This type of hand-drawing clip paths obviously need expert designers who have very deep knowledge of cut out the images according to images original shape. Clipping Fascinate designers always use 1 or 2 pixels inside from edges of the photos with definitely 200% zoom+. Our more than 100 of designers always remove the background of product, model, jewelry items and vectored.