local plr = game.Players.LocalPlayer
function makeBox()
local box = Instance.new("Part")
box.FormFactor = "Custom"
box.Size = Vector3.new(3,3,3)
box.Anchored = true
box.TopSurface = 5
box.BottomSurface = 5
box.LeftSurface = 5
box.RightSurface = 5
box.FrontSurface = 5
box.BackSurface = 5
local outline = box:Clone()
outline.Size = Vector3.new(3.2,3.2,3.2)
outline.Transparency = 0.3
outline.BrickColor = BrickColor.new("Black")
outline.TopSurface = 0
outline.BottomSurface = 0
outline.LeftSurface = 0
outline.RightSurface = 0
outline.FrontSurface = 0
outline.BackSurface = 0
return box,outline
end

local probe,box

plr.Chatted:connect(
function(msg)
if msg == 'probe' then
probe,box=makeBox()
else
game:GetService("Chat"):Chat(probe,msg,"Blue")
end
end)

cam = game.Workspace.CurrentCamera
while wait() do
probe.CFrame,box.CFrame=cam.CoordinateFrame,probe.CFrame
end