Cant make selection box work on Cloned parts, help?

My part that i am cloning multiple times has SelectionBox object and this script in it:

box = script.Parent.SelectionBox

while true do
    wait(0)
    box.Adornee = script.Parent
    wait(0.5)
end

And under StarterGui i have LocalScript:

wait(1)

Player = game.Players.LocalPlayer
Mouse = Player:GetMouse()
local Part = game.Workspace.clonedparts.kockastone -- this is where i store new cloned parts

while true do
    if Mouse.Target == Part then
        Mouse.Target.SelectionBox.Visible = true
    else
        Part.SelectionBox.Visible = false
    end
    wait(0)
end