trying to script tween in my tool but it is not working it works fine out of the tool tho. why?

wait(1.5)

TweenServive = game:GetService("TweenService")

info = TweenInfo.new(3,Enum.EasingStyle.Linear)

goal = {} goal.Size = Vector3.new(4.7,4.1,0.1)

tween = TweenServive:Create(workspace.Part,info,goal)

tween:Play()

-not part of script Tool Name = Tool Parts in Tool = handle this is not what i am trying to tween, MagicCircle this is what i am trying to tween but it is not working