How do I use Mouse Target?

mouse = game.Players.LocalPlayer:GetMouse()

while wait() do
Target = mouse.Target
if Target.Lootable.Value == true then
print "Lootable"
elseif Target.Lootable == nil then end
end

Output: "Lootable is not a valid member" Lootable is a BoolValue

How do I get it to work?

Um. You cannot directly go to a value in the target here

mouse = game.Players.LocalPlayer:GetMouse()

while wait() do
Target = mouse.Target
if Target:FindFirstChild("Lootable") then
if Target.Lootable.Value == true then
print("Lootable")
elseif not Target:FindFirstChild("Lootable") then 
print("Ended")
end
end
end

Thanks, I appreciate the help but it says that is still nil at line 6