There's useless, next to useless and then there's the worst kind of useless...... Expensively useless.
Let me explain and hopefully it'll prevent somebody else making the same costly 'mistake'.
I purchased the clip from another supplier along with the phone holder/mount for my Samsung Note 3. Great phone and perfect to use while out on my road bike (cycle).
The instructions gave the max dia for the clip and the bar dia of my Specialized bike was less than this but the screws supplied were miserly short and I was convinced they'd do the job. Luckily I had some long length screws with the same thread so used these instead.
Clipped on the phone holder for my lovely pristine Samsung Note 3, turned on MapMyRide and set of for a ride. So the installation done but shouldn't have to supply my own screws.
Then disaster........ 3 miles into the rude the vibrations off the road had worked HD holder and phone lose and it flew off the mounting flop and crashed to floor at about 25mph.
The result one cracked screen, two bashed corners to my phone and one hacked off punter.
I should have gone with my instinct when I'd put the phone holder into the clip and thought it was ok but only ok. It wasn't a positive thought of that'll never come out, but it's ok.
So now I'm left with a useless phone mount that's not up to the job or fit for purpose, broken phone mount and smashed phone as a result of bouncing down the road at 30mph.
The annoying thing is I keep my phone in an Otterbox, never even a scratch on any phone I've owned.
So....... A very costly purchase.
Don't make the same mistake !!!!!!
Warning IF you've already bought one I'd scew in a self tapper so the mount and clip will never separate.