Hmm, how do you make a box that is on ALL 3 layers?

[Qwertygiy]

Try this:
[lua]
while true do
wait()
if script.Parent.Layer == 1 then
script.Parent.Layer = 2
elseif script.Parent.Layer == 2 then
script.Parent.Layer = 3
else
script.Parent.Layer = 1
end
end
[/lua]

[/lua]