Meet Devin Graham. He is a producer of extreme sport videos on Youtube (chech his channel here). Devinsupertramp, his youtuber name has been sponsored by Subaru to create the world tallest “slip and slide” which is setup in a 500 foot cliff. Still wondering how the chute was able to hold him with those massive steel balls! Joking aside, this guy vids will definitely amaze you in several ways!