HOW TO CHEAT THE KNUCKLEBALL!

We're back with another experiment video...this time, we find out just what it takes in order to produce the perfect KNUCKLEBALL!
► Don't forget to SUBSCRIBE: bit.ly/SubscribeF2
► CHECK OUT OUR CLOTHING RANGE! bit.ly/RascalCl...
► GET THE F2 BOOK! bit.ly/F2Book
DOWNLOAD OUR BOOK APP FOR FREE
► The F2 App on Apple/iOS - bit.ly/F2AppiOS
► The F2 App on Android - bit.ly/F2Android
To keep up to date with us at any time in any place then follow us on;
Twitter - bit.ly/F2Twitter
Instagram - bit.ly/F2Instagram
Facebook - bit.ly/F2Facebook
Snapchat - bit.ly/F2Snapchat
Stay tuned by subscribing to our channel to see all of the amazing videos coming up in the near future! Love, peace & tekkers! Billy & Jezza