Speedy potion tool script

--potion
_G.potion = game:GetObjects('rbxassetid://154727251')[1]
_G.potion.Parent = game.Players.LocalPlayer.Backpack
_G.potion.Equipped:Connect(function()
game.Players.LocalPlayer.Character.Humanoid.WalkSpeed = 75
local Sound = Instance.new("Sound") 
local Id = "12722532"
Sound.Parent = game.Workspace
Sound.SoundId = "rbxassetid://"..Id
Sound.Playing = true
Sound.Looped = false
Sound.Volume = 5
end)
_G.potion.Unequipped:Connect(function()
game.Players.LocalPlayer.Character.Humanoid.WalkSpeed = 75
end)