Longer Arm for Shower Head?

Synomenon

Lifer
Dec 25, 2004
10,547
6
81
The arm and shower head I have now is this:
y13ouxE.jpg

I was given this new shower head:

www.deltafaucet.com/bathroom/product/58680-PR25.html
58680-PR25_WATER_04_WEB.jpg
The arm that's there now I feel is too short and I want the new shower head further out / into the shower space. Would it be safe to replace the short, existing arm (I believe it's a 7" Delta Shower Arm) with a 10" or 12" arm?

www.homedepot.com/p/Westbrass-1-2-in-IPS-x-10-in-Round-Wall-Mount-Shower-Arm-with-Sure-Grip-Flange-Polished-Chrome-D302-1-26/202041786

www.homedepot.com/p/Kingston-Brass-Claremont-Rain-Drop-12-in-Shower-Arm-with-Flange-Polished-Chrome-HK112A1/309639447
 

Synomenon

Lifer
Dec 25, 2004
10,547
6
81
Sorry if my post was confusing. I was only asking for opinions on whether the new shower head would be ok to use with a longer arm.