--FIRST EXECUTE THIS: 
local amount = -(0/0)/math.huge

game:GetService("Players").LocalPlayer.Inventory:InvokeServer("BuyBox", "Crate", amount)
--then use whatever you want
-- Script generated by SimpleSpy - credits to exx#9394

local args = {
    [1] = "BuyBox",
    [2] = "Crate",
    [3] = 100 -- amount
}

game:GetService("Players").LocalPlayer.Inventory:InvokeServer(unpack(args))
----------------------------------------------------------------------
local args = {
    [1] = "BuyBox",
    [2] = "Chest",
    [3] = 100 -- amount
}

game:GetService("Players").LocalPlayer.Inventory:InvokeServer(unpack(args))
----------------------------------------------------------------------
local args = {
    [1] = "BuyBox",
    [2] = "Case",
    [3] = 100 -- amount
}

game:GetService("Players").LocalPlayer.Inventory:InvokeServer(unpack(args))
----------------------------------------------------------------------
local args = {
    [1] = "BuyBox",
    [2] = "Safe",
    [3] = 100 -- amount
}

game:GetService("Players").LocalPlayer.Inventory:InvokeServer(unpack(args))