I have one down the side of my arm, near my wrist. Honestly, if you're worried about pain don't be, to me it didn't hurt at all if anything it's just like a warm scratch but not what I'd describe as painful. It stung a little bit for a couple of hours after but again, nothing unbearable. My tattoo artist is lovely, he's very chatty, makes you feel really as ease so that really helps too!
Make sure you apply a cream (I used bepenthen) for at least a few days to keep it nice and moist and to stop it from drying out and cracking, I still sometimes apply cream if it's feeling a bit dry.