The gravity induction design of this automatic salt and pepper grinder set allows you to work just by tilting the product at a certain angle ( 15), one-handed operation, completely freeing your hands to handle other kitchen tasks while grinding. This electric salt and pepper grinder set has a built-in rechargeable (2) 3.7V 500mAh Lithium Batteries, multi-functional charging base, which can be used for both charging and storage, and unique contact design, just place the pepper mill grinder on the charging base to charge it. Twist the knob on the bottom of the rechargeable salt mill to set the coarseness you want, and control the spice grinding from coarse to ultra-fine.The white LED light automatically illuminates when the electric pepper grinder is working or charging, allowing you to use it intuitively. Dust cover on top of pepper grinder & clean and hygienic, front turn-on silo cover design & easy feeding, ceramic grinding center & high hardness and wear resistance, stainless steel & ABS material, charging base & easy to store. The rechargeable and refillable salt and pepper grinder set is suitable for black pepper, white pepper, sea salt and other solid grain seasonings, It is a good helper and ideal for kitchen, restaurant, outdoor camping picnics and parties, It can fully meet your needs All seasoning needs, also a great gift for friends and family. Material: ABS colour: black Package Contents: 2 x Pepper grinder 1 x Charging point base 1 x USB cable 1 x Cleaning brush 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 picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.