This gravity salt and pepper grinder set is equipped with gravity sensing design. simply flip it and you will get fresh ground spices. New model electric salt and pepper grinder set uses the built-in rechargeable lithium battery. you can refill the battery without hassel battery replacement. Adjustable electric salt pepper grinder mill with led light. adjustable knob on grinder mouth to adjust coarseness of spices. Lightweight & durable:the durable stainless steel body with a slim and compact design makes this grinder lightweight and easy to hold. ceramic burrs, which are different from metals, improve durability and keep spices fresh and natural. Easy to fill and clean & warranty:salt grinder and pepper grinder are made of unique brushed stainless steel. salt and pepper grinder can be quickly and easily disassembled, so it can be refilled or cleaned in minutes.