A brilliant product. I don't ha e an iphone so I had to mod mine to fit my phone with someplace plastic epoxy and duct tape. I then measured and recut the cam opening.

Some other improvements: two plastic stops inside to keep your phone from moving around(use epoxy), grind out the inner rib at the bottom so you don't have to slide your calc as far to see your phone. I also sanded and painted mine to mimic a retail case.

Love this product!

As described

It's very good because I just took my first exam which is statistics and It's a very challenging course so all I did is put my cell phone inside on the calculator to memorize the formula's to solve the problems. Also, I used pictures that I've taken to help Utilitize what problem's I'm stuck with the most.

I like it guys is very nice

Couldn't be simpler to use just clip it and go

Would recommend this to anyone really useful

This thing is amazing works exactly like I needed

Works as expected really helped me out

Phone fits in perfectly no issues at all

Made a huge difference on test day so glad I found this

Really clever design makes it super easy to use

Cant believe how well this works super happy with it

Works perfectly love it

It's so easy to use just clip it on and you're set

I love this thing so much it’s the best