[wdfifteen]

I ordered a set of spark plugs for my Speedster from a place called NGK-Sparkplugs.com. I paid through PayPal - $4 each and free shipping. I got an email from the seller through PayPal saying they've been shipped. Now I'm having second thoughts. The seller's name is apparently not NGK-Sparkplugs, it is now LOK KAN TANG and the plugs are being shipped from Hong Kong!
How can a seller legitimately buy spark plugs from NGK at any price and ship them for free to the US? I'm afraid I'm going to get some Chinese knock-offs that are going to come apart in my engine. Anyone have any experience with this?