Instruction: Answer the given question by extracting information from the supporting document.

Input:
Question: how long exactly is the gooseneck (just the gooseneck)?
Document: The materials seem to be very high quality, the finish is very pleasant, and there was almost no position or angle that I couldn't put it in to make my iPad 4 handsfree. Primarily, I bought this for bed since laying on your back with an iPad 4 kind of sucks. It fit nicely under the mattress / above the box spring. I also tried it over the arm of the couch while laying back on the chaise. Works perfectly.My only concern is when the arm is fully extended and the gooseneck is angled horizontally (like most people would have it floating across your lap on a couch), a strong breeze might make it tip over (while holding an iPad 4).Even with this slight inconvenience, it's head over heels better than anything else I've tried, even at the high premium of $140.
LOVE IT! Here's the deal. I've been waiting for the &#34;perfect&#34; full-sized &#34;universal&#34; iPad stand (meaning that I can keep my case on it, not have it be a naked iPad) for no less than a year, maybe two. I've purchased and tried out 1 or 2 cheaper stands in the past and returned it the same night. They are made out of shop materials that most people could fabricate in their garage. This stand blew the others out of the water, both in form and function.
I purchased this for my son who has ALS. He is able to use his ipad in his power chair or in bed. It's a good price. I would recommend this stand!Sam
I have read one star reviews I noticed customer complaining about the standmoving when their typing. this stand is primarily used for reading, videos or viewing something,  light surfing even light texting. I I do not recommend using it for heavy texting or heavy surfing. if you have to text try using the voice to text. I'm not poking at the screen and moving the stand.so far I will highly recommend this product
I bought this stand for music jams. It has worked out ok. It's stable and the goose neck is easy to adjust. The only problem has been adjusting page orientation. There doesn't seen to be an easy way to do this. It always feels like I'm forcing the change and I worry that the forced twisting will soon cause a break. So far, so good though.
I am starting this rating all with 5 stars. The reason I started it off with 5 stars is because1. delivery : it was delivered on time2. packaging: the packaging of this product is excellent3. quality: this item is built to last it has nice weight and good balance, flexible and is definitely not cheap made4. convenience: I am presently on my hammock typing this review by voice  while the tablet is mounted on the stand with my Bose headet at the ready and I will be watching the wolf of wall street after I complete this review so you can now imagine and have an idea on how I would be spending part of my summer and fall.actually I was leary about getting this product thought it would be something that will just be taking up space and look awkward now that I have it it actually looks pretty good and very usefulokay I already had this stand or only 30 minutes and I am already spoiled7/15/14 updatestill on my hammock updating my review.
Honestly, it's probably more competitively priced at $99, but oh well. I'd buy another one in a second...maybe I will. :-)
Answer: It is not where I am, so I would have to guess that it is about 24"