How do I rotate my see-saw?

I am trying to use tweening. After watching tutorials I came out with this (doesn't work):

local db = game.ReplicatedStorage.SeeSawdb
local turn = workspace.Turner
script.Parent.MouseButton1Click:Connect(function()
	if db == true then
		db = false
		local ts = game:GetService("TweenService") 
		local info = TweenInfo.new(5, Enum.EasingStyle.Linear, Enum.EasingDirection.Out,-1)
		local properties = {CFrame = turn.CFrame * CFrame.Angles(0,-15,0)}
		local tween = ts:Create(turn,info,properties)
		tween:Play()
	end
end)

Can someone please help? Thanks in advance!

I am not sure why you are using as it will never == true

local db = game.ReplicatedStorage.SeeSawdb

For the rotation CFrame.Angles is in radians use math.rad() to convert degrees to radians.

Lastly there is a completed event for tween you can use to reset your debounce.