While designing this knife we set a few goals: - It must accept any standard trapezoid blades commonly found on the market - Ultra lightweight - Modern and elegant look - One hand opening - Easy blade swap no tools required I believe we achieved all of them and the final product turned out exceptional. The main purpose of this knife is a light everyday use. You can use it to open letters and packages. It is also very useful when you need to cut something abrasive and don't want to ruin the finish on your precious custom folder. It isn`t optimal for cutting dry walls and carpet. Another great feature of this knife is that it doesn't look like a knife. You won't scare anyone with it. It looks like a keychain trinket, small flashlight, worry stone or a necklace. Finally the open construction of the knife allowed us to play with patterns on the blades and dress it up even more. Each knife comes with a set of 5 laser engraved blades with different pattern so you can customize it for the occasion. Do you want to carry an everyday utility tool in your cargo pants or a gentleman folder with your suit? We believe Shard will serve you well in every situation. Approximate wait time is three weeks.