Probably the number one question I've been asked lately is, "Cait, what is a PopSocket?"
To be honest, I didn't know until recently either, haha. Here goes:
It permanently sticks onto the back of your phone, or phone case. It's a grip that "pops" out. I've noticed I've had a lot less hand cramps with it, and that's a great thing in my world. They also act as a kickstand for your smartphone so it can stand upright.
I made one for myself a few months ago, just like the ones you see here, and it's aged beautifully. The glue hasn't budged and the leather keeps looking better with use, like a good saddle (deep brown and smooth).