I bought these shakers because I was looking for shakers I could use for both cooking and I could use at the table, The adjustable lid offers a pour Slot for measuring, another twist of the lid and you have larger holes for cooking, another twist and you have small holes for adding a little more at the table, or you can close it all the way on hot humid days to prevent clumping!They are a good size set and won’t need to be filled often.They are glass with a stainless steel sleeve that slides over them and are very attractive!When my package came I put them together and tested the lids, everything seemed to work fine so I washed them and left them to dry overnight. The next morning I filled them and that night at dinner, one of the rotating adjustable lids failed me , it wouldn’t turn at all.My husband looked at it and monkied around with it some, but could not find a solution.When I first opened the box I remembered a Card was tucked inside that said STOP, if you have any issues with this product contact us((with an email address), not the seller(Amazon)So that’s exactly what I did. This is a small family business, a husband and wife team who got back with me immediately, apologized for the malfunction and sent me out another set immediately, and didn’t require me to send the faulty set back!So yes I def. Recommend this and every other item this brand sells!!