This pick was designed by JD Crowe and constructed to his very exacting specifications. It's the exact one JD uses. And me, too. I know it's expensive, but calm down. You get what you pay for in this case. The pick bears JD's initials on the inside between the rivets Constructed using custom designed stainless steel band and a 50/1000 of an inch (1.25mm) thick BlueChip pick Laser etched, professionally machined, and hand beveled to create the best thumb pick available Blade material is lightning fast off the string and creates that responsive "pop" tone with ease Choose size, small, medium, and large sizes available and are comparable to similarly sized picks which you may already be used to Pretty much just awesome and worth the money When adjusting the thumb pick bands put your thumb inside the band and apply pressure to the rivets. Then push or pull on the band itself to open it up or make it more snug of a fit. DO NOT apply any pressure to the tip of the blade during this process or the blade will snap at the rivets. -Blue Chip Picks