Roblox Example 461 Tween, Magnitude

local player = game.Players.LocalPlayer
local character = player.Character
local localroot = character:WaitForChild("HumanoidRootPart")
local tw = game:GetService("TweenService")
local info = TweenInfo.new(0.5)

while wait(0.1) do
    for _, v in pairs(game.Workspace:GetDescendants()) do
        if v.Name == "CK" then
            local distance = (localroot.Position - v.Position).magnitude
            if distance < 100 then
                local Tween = tw:Create(v, info, {CFrame = localroot.CFrame})
                Tween:Play()
                Tween.Completed:Wait()
            end
        end
    end
end