I originally bought a set of these gravity salt and pepper grinders for my mother who has limited use of her right hand. They worked so well, were such a novelty and a great bargain that I bought four additional sets-- for her best friend, sister, and ME (one for our home and another for our vacation home!)
Yes...they take 6 batteries in each grinder, but they get the job done.
NOTE Reason for 4/5 stars: In the five sets I bought over the course of a few months, one grinder was defective. Overall quality is very good, not excellent. However, I called Great Offer Stock Customer Service and they sent a replacement set right away. The Customer Service rep even said she was going to order a set for her mom!