This item is not replicated across Roblox’s server/client boundary.
Whether the Humanoid is jumping. If set to true, it will cause the Humanoid to jump. The humanoid jumps with an upwards force equal to the value of its JumpPower property.
Humanoids are able to jump roughly 7.5 studs high by default, depending on both the Workspace’s Gravity, and the JumpPower of the humanoid itself.