Internal manual coffee grinder More ergonomic handle length, saving energy capacity up 30G Aluminum anodized shell is rust proof. Black ceramic core, hard and durable, no heat when grinding.is hard, beautiful and durable. Sharp and durable burrs Precision grinding grinding Wide grinding adjustment Point type digital control valve Simple and clear digital calibration point adjustment fixed scale Turn clockwise to obtain finer grinding size; Rotate counterclockwise to obtain a coarser grinding dimension. Color: silver : metal + wood Package Contents: 1 x Hand Grinder Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.