They advertised on their website (anti gravity gear) as a ultra light backpacking knife, so maybe that is how they can get away with it. NO Sinclair name on the site. It arrives in a credit card size wrapped in plastic, but I can read the Sinclair name and Cardsharp. I had never heard of your company so when I received my light knife I was interested in and found your website. The serial number is 020117021, which I saw from your site is a counterfeit.