salt and pepper grinder set copy of grind gourmet original pump and grind spice grinder, herb grinder for salt or pepper, buy 1 or set of 2 grind gourmet the mills on this listing are copies of our original pump and grind mills, not the originals. the copy mill has a plastic inner tube that holds the contents of the mill, it is not as sturdy as the solid stainless steel original pump & grind mills. please note all sellers offering this same mill on amazon have the same plastic inner core, the only grind gourmet offers the original pump & grind mills. the originals have a solid stainless steel body with a less than 1/2" food-grade acrylic viewing window. both the copy mill and the original mills work the same way, you push down on the top button to move the stainless grinding rod down through the contents of the mill to produce fresh ground salt or pepper. the originals have stood the test of time, the copies offer a lower price point, due to the material difference of the mill, the stainless steel used in the copy mills is not the same high quality as the originals. we offer both mills on amazon (originals have their own listings) so consumers can decide what to invest in. we are pleased to answer any questions you may have! besides up front honest product information, we back our products and offer great customer service. *please note we do not recommend the use of large granule salts with both the copy and original pump and grind mills, we recommend small to medium salts to allow the grind rod to move through the mill's contents with ease. we also recommend you not over fill this mill to allow the grinding rod space to move through the contents of the mills to do its job. thank you for taking the time to get to know the difference between grind gourmet's original pump & grind mills and the mills listed on this listing. you can search all the mills grind gourmet has to offer by entering our name in the search engine. have a great day.