How do I get a item in a folder respective to the math.random value?

local REMOTE = Instance.new("RemoteEvent")
REMOTE.Name = "Box_event"
REMOTE.Parent = game.ReplicatedStorage



game.ReplicatedStorage.Box_event.OnServerEvent:Connect(function(Player,Item)
local ItemsList = game.ServerStorage.Items:GetChildren()
	if (Player.Character.HumanoidRootPart.Position - Item.Position).magnitude < 10 then
		local ChosenItem = math.random(1, #ItemsList)
		local Clone = game.ServerStorage.Items[ChosenItem]:Clone() -- problem
		Clone.Parent = Player.Backpack
	end
end)

On the math.random, I want it to choose a number and on the next line, copy that tool that is that number in the folder. But it only returns a number instead.