CASSIECA 9/12/16Pairs Men's Rings Stainless Steel for Men Boys Unique spinner ring design features an inner band locked in the main band that can be spun manually and help you get through stress and relief anxiety. Perfect for someone who is looking for a non distracting way to redirect bad habits or get out fidget energy when you otherwise can't CASSIECA Multiple Mens Rings Item for You to Choose from Previous page Next page 316L Stainless Steel Rings for Men, Hypoallergenic and Waterproof Promise Wedding Rings Couple Rings Valentines Day Gifts for Husband Boyfriend Take Care of Your Jewelry Perfect Gift Idea for Christmas Birthday Valentines Graduation Thanksgiving Day Are these rings allergenic? No, our fidget rings all are made of 316l stainless steel, it's hypoallergenic and sturdy, long time use can keep shiny and will not tarnished, sensiitive skin also can wear. Can I wear them showing or swimming? Yeah, these mens rings are waterproof, you can wear it any occasion, it won't rust or tarnished. But for better maintain them, avoid contact with corrosive and strong acidic chemicals. Is the finger ciecumference of thid rings accurate? How can I choose the most suitable size for my rings? Hello, thanks for choosing CASSIECA. Our rings are made based on international standards, you can use a rope around your finger then measure the length, compare the size table in the picture details page to choose the size that suits you best. I read in the title that these rings are rotated. Why are some of them not rotated? Our 9/12/16pcs rings are all upgraded, on the the original basis, we added more styles rings that people like, so it can not only release your stress, but also as engagement rings, wedding rings, couple rings for men women. Give you multiple choice.