Made of 100% high quality stainless steel, with anodized coating, strong and durable, safe for children and adults.help promote a sense of calm, reduce stress / anxiety, increased attention / focus,promote blood circulation to a certain extent.Shiatsu ring is suitable for adults, students, therapists, long-term computer users, ADD/ADHD obsessive-compulsive disorder or high anxiety disorder, those who want to relieve stress and restless people.These portable pocket-sized Fidget toys are light and compact and can be carried anywhere. Quiet gadgets and toys, when you use them, they will not disturb the people around you.Custom logo on package.Pls call us for more info!