/cgl/ - Cosplay & EGL

Hey anons, I'm planning on using Vograce to order my first set of charms. In the pic i attached, should i leave the quantity to pieces so they know how many charms i want and just tell them the size by inches and they'll roll with that? I'm pretty stumped cause i'm confused on what to set it since you can pretty much change it from inches to millimeters, etc.

I just wanna make sure i don't fuck up or confuse the hell out of Coco when i send in my quote.

Thanks! :)