You're trying to dropship. shyt is cool but risky.
If you're not selling anything counterfeit or illegal that's a plus, but dropshipping cuts into your margins and kinda puts you at a risk.
I started off dropshipping real cellphones when I was 15
I don't know what shipping service they're gonna use to get 2-7 delivery time, probably EMS, but still 2-7 is an optimistic timeframe
Also it's harder drop ship now that PayPal implements payment holds on a lot for eBay transactions. It used to be you could literally make money with no money to start off with, but now you might actually have to start off investing your own money to purchase the goods, with no guarantee your customers will be satisfied with the product.