Keten Magnetic Building Blocks Set&mdash;Upgraded Magnetic Construction Stacking Toys for Children Over Three Years Old [52pcs] THE ULTIMATE STRESS RELIEVER: Having a tough day at work or school? These magnetic balls are a great stress reliever and a professional looking fidget relaxer. Carry these anywhere! They can easily be stored in your pocket or anywhere on your desk. CONTAINS SMALL PARTS: Use under adult supervision only. Do not put in mouth or nose. This product contains small magnet balls. If multiple magnets are swallowed, they can attach to one another through intestine walls. This can cause a severe health risk, requiring immediate, emergency surgery if correctly diagnosed. GREAT EDUCATIONAL GIFTS: It will be a great gift for youth, teenager kids. Besides, it will also be a good toy for adults to release stress. Your masterpiece of colorful cubes can be a great decoration for your home or office desk too! BOOST BRAN POWER AND IMPROVE COGNITIVE FUNCTION: This brain-training toy can give your brain a full workout and stimulate imagination and creativity, improve focus and concentration skills, 3-D thinking ability (space imagination ability) and small motor muscles (finger dexterity) at the same time. RELIABLE NON-TOXIC MATERIAL: Magnetic balls are made with premium quality metal Durable, light weight, Non-oxidative. we offer the highest quality product. We offer a 100% money back guarantee so if for any reason you are not positively thrilled let us know and receive a fast, no hassle refund.