WhatsApp Contact Photo Sync is a tool that allows you to take your contacts' avatar photos so that you can then set them as phone contact avatar photos.
It's quite simple: opening the app will display a list of all of your contacts that have WhatsApp, and help you to access their avatar images. From there you're just a tap away from re-using that photo for a phone contact.
WhatsApp Contact Photo Sync is a simple tool that will enable you to import photos from one contact list to another in a matter of minutes.