This was posted on Facebook on a Nifty FB page and I could not share it on Pinterest. Searched for another source and could not find it, so I'm sharing via a back door.
I am big on finding wasted space, or places to securely hide thing. This offers both and, depending on the type of chair, this could create a LOT of space!
Here is a link to the how to video.
https://www.facebook.com/buzzfeednifty/videos/1948621365392586/?hc_ref=ARS-D-hi4_Osh7f2FQAuuYe6kylWLUMoJArLDDkhg5KrVgraQwaRd_XO3JGvWYR2jqY