Quick Answer: The Agilive Stainless Steel Manual Coffee Grinder is a manual coffee grinder from Agilive designed for grinding coffee beans without electricity.Key Details Instructions for Use: Before first use, turn the dial clockwise until it stops to set the starting point. Cleaning Instructions: To protect the grinding core, do not grind within the 1–6 range before first use or when changing coffee grind settings, If frequent use, we recommend disassembling and cleaning the product once a week. Coffee Mode and Number of Rotations:These values are for reference only; please adjust them according to your personal taste. Stainless Steel Burr:Features a 38mm stainless steel burr for precision, consistency, efficiency, and durability. Durable & High-Quality Construction: Features an aluminum alloy body, ABS handle, and CNC-machined 420 stainless steel grinding core, Easy to disassemble and clean with the included brush.