Sliding Door

local TweenService = game:GetService("TweenService")
local Door = script.Parent:WaitForChild("SlidingDoor")
local tweeningInfo = TweenInfo.new(
    0.9,
    Enum.EasingStyle.Linear,
    Enum.EasingDirection.Out,
    0,
    false,
    0
)
local doorOpen = {CFrame = CFrame.new(10.5, -4, 7.5)}
local doorClose = {CFrame = CFrame.new(10.5, 4.2, 7.5)}
local tweenOpen = TweenService:Create(Door,tweeningInfo,doorOpen)
local tweenClose = TweenService:Create(Door,tweeningInfo,doorClose)

script.Parent.Detector1.Touched:Connect(function(hit)
    tweenOpen:Play()
    wait(3)
    tweenClose:Play()
end)