thrust barring's, witch one do I need?

YouTube Video UCPnpstQRki5EThp0R4hJ9DQ_SNS1CwhqXdA

witch one should I use? what application is it used for?
Join this channel to get access to perks:
https://www.youtube.com/channel/UCPnpstQRki5EThp0R4hJ9DQ/join