How to link a Developer Product to a gear?

I'm not sure if you want the game pass to give the play a tool, but here's a way you could do it:)

id = 1337 --gamepass id

game.Players.PlayerAdded:connect(function(plr) -- this is where the player has entered the game and you start a function
repeat wait() until plr.Character
if Game:GetService("GamePassService"):PlayerHasPass(plr, id) then -- we use game pass service to see if player has game pass
tool = game.ServerStorage["Tool Name"]  -- put the name of the tool you want them to have here
tool:clone().Parent = plr.Backpack
tool:clone().Parent = plr.StarterGear -- puts it into players started gear
end
end)

Hope this helped:) I forgot to tell you to make sure the tools in the server storage You should also atleast attempt a script we really aren't supposed to just give u the script but good luck:)