Great product—however—at the price you charge, you should add a base, approximately 16”x10”x3/8” steel. It would weigh about 10lbs and eliminate the need for the funky C-clamp. I’ll make one on my own because I’m a metal and woodworker, but you should add it at no cost. Other than that, I like it a lot and am glade that you can make a decent profit. Your sharpening stones are fantastic, allowing both directions if I desire without ruining the stones. The design and engineering shows that you’ve learned by using other inventions that work poorly compared to yours.