Just people reacting to guy sitting on invisible chair : r/videos
INVISIBLE CHAIR - Daytona Magic, Inc.
Amazon.com: JDGFF Invisible Seat Leg Brace Magic Stool, Wearable Portable Ergonomics Lightweight Chair, Metal Folding Fishing Chair for Music Festival Concert Subway Bus, Bear Up to 330Lbs ( Size : L/170-180cm ) :
Exoskeleton is the invisible 'chairless chair' that lets you relax anywhere | Daily Mail Online
Swiss startup creates a wearable chair so you can rest anywhere | Engadget
Invisible Chair Magic Trick Sale | Mind Reading Magic Tricks - Control Magic Tricks - Aliexpress