Stainless steel hand coffee grinder with wooden handle. You can watch a video on how to use and assemble it (although it's already assembled) by scanning the QR code. - Brand: KINGrinder - Handle: Wooden - Included: Instruction manual I ground coffee beans with it only once. Since it's not washable, I cleaned it with the included brush. I would appreciate it if someone who understands this would purchase it. Perfect for coffee lovers! Thank you for looking.