Watch the high speed K'nex Amazin 8 Roller Coaster! Shown in slow motion, and stop motion speed build, this playset is motorized for exciting performance that sends the car up the chain lift and spiraling through the track! This set comes with 448 parts, and is over 2.5 feet tall with 12 feet of track!
Video Link :
K'NEX Amazin 8 Roller Coaster Amusement Park Series Slow Motion Speed Build - Unboxing Demo Review