its a new feature Instagram introduces in December 2017.
Instagram story highlights features show a collection of Instagram stories on your profile.
you can save up to 100 pictures and videos in Instagram .
you can also use this feature for your promotion if you are running an online shopping store.
how to use this feature is so easy. just follow my instructions.
open your Instagram profile and you will see an icon of "+" on your profile. click on that icon like this
now select pictures and videos you want to see in highlights.
now give a title to your highlights.
now click on "ADD" option to post it on your profile.
you can see your highlights like this
you can see highlights of other people like this