I want to resize my chars limbs and my script doesn't seem to work. Does anyone know of a method to resize limbs through script?

 game.ReplicatedStorage.Remotes.RubberEffect.OnServerEvent:connect(function()
	print("B")
	local leftHand = game.Players.LocalPlayer.Character.LeftHand
	local rightHand = game.Players.LocalPlayer.Character.RightHand
	local leftPosition = leftHand.Position
	local rightPosition = rightHand.Position
	local leftSize = leftHand.Size
	local rightSize = rightHand.Size
	if leftHand and rightHand then
		print("C")
		for i = 1, 10 do wait(0.2)
			leftSize = leftSize + Vector3.new(5, 5, 5)
			rightSize = rightSize + Vector3.new(5, 5, 5)
		end
	end
end)