Electric Salt and Pepper Grinder - Automatic salt & pepper grinder is a boon for those with arthritis in the hands. Saves fighting with twisting, fighting with a hand grinder. No need to twist, push, or none of that! This electric salt grinder is not rechargeable and requires a total of 4 AAA batteries. These are not included. Convenient Switch Button - This pepper mill grinder is activated by simply pressing a button which instantly starts the grinding and dispensing of salt or pepper. The sea salt grinder works well, as soon as you aim the grinders over your food the salt and pepper come out fast. Since most of the time, you need a very small amount. So the button-operated electric grinder may make it easier to control the amount of grind with the button. Adjustable Coarseness - Theres an adjustable knob at the bottom of the salt and pepper mill so you can turn the dial to choose how coarse or fine you want your grind to be. The salt mill has a cool-looking white LED light at the top to help you check the amount of pepper and add salt and pepper exactly where you want it. It's really cool and fun to use. Easy Way to Refill - The back-side loading opening with a sliding door makes the pepper grinder mill extremely easy to fill with your choice of salt or pepper. There is a small see-through window on the front of the grinder to clearly see how much salt or pepper is left in the container unit. Great Gift - The refillable pepper grinders are very functional, stylish, and a lot of fun to use. These pepper cannons make a great gift for anyone who likes to cook or is tired of the work you have to put in using traditional manual grinders for just a little bit of spice. The automatic pepper grinder is definitely suitable for gifting. Most other pepper grinders are manual or are electric and activated by turning them over. So you have to turn the salt grinder upside down and then hope to God your fingers are quick and nimble and shut it off in time so that way your food is not completely drowned in pepper! In this respect, a button-operated electric grinder may be easier to control by briefly pressing the button.