Patent Number D778705 Block knife Sharpener started off as a Part time small family business. My Grandpa Paul Block Sr. and my Dad Paul Block Jr. Live in Capac, Michigan where they started their business in the early 70’s. They were the Original designers and Manufacturers of this style knife sharpener. My Dad and Grandpa had sold lots of their knife sharpeners to Butcher shops, Gun and Knife shows, car shows, sport shows, and flea markets all over Michigan. And original’s sold on TV in Detroit area as the Easy knife sharpener. In the late 80’s they added our last name on the sharpener handle, and renamed it the Block knife sharpener. My grandpa passed away in 2003 and I the grandson Paul Block #3 and my wife Billie Jo walker Block took over his part of the business. We started traveling to sport shows and Gun shows all over the united states selling grandpa and dad original knife sharpeners. Then in 2014 we redone the original sharpener with a New Patent Anti-slip grip and thumb guide. This new technology and bright colors made it a Big hit every we went. Buy 2016 our knife sharpeners where recognized all across the united states as one of the best knife sharpeners you could Own..We sold out everywhere we went. In the Winter of 2017 I Paul Block made my first TV appearance on the TV show Cutlery Corner Knife show. We were a Big hit. Now we do special guest appearance every 3 months on there knife show. And now Block knife sharpeners are the Best selling knife sharpener Cutlery Corner knife show.