What it does
Multiplies the Speed you gain while training by 1,500x (Secret).
How to get it
Trails Shop in the Safe Zone for $600B, or Robux. Equip it from the Trail menu after buying, or it does nothing.
Pro tip
Robux shortcut: Trail 9, 499 R$ (tier match is our best guess).
Reported by a single source – we are double-checking this one.