NEODIUM MAGNET - SPHERE MAGNET - NEO CUBE - NEODIUM K 5 MM 216 PCS By adding neodymium spheres together, you can create any shape you can think of and improve your creativity. Magnetic Balls are a perfect 3D puzzle created to relieve stress, enrich imagination and be used for educational purposes in children's mental development. Each different shape you uncover will only tempt you to find the next one. With endless creative potential, Magnetic Balls will reveal yet undiscovered aspects of your creativity and intuition. NEO CUBE is one of the rare products that is fun for children and helps relieve stress for adults. At the same time, you will literally reset your memory during the day thanks to neon cube, one of the indispensable home accessories of the Japanese. 216 Magnetic Balls, each 5mm in diameter. Show your intelligence. Design different and fun shapes. Our products are not weak zinc magnets. 1st Quality Nickel Plated. These are magnets that do not tarnish or fade, have been subjected to a salt water test, and are resistant to 80°C heat. Nickel Plating Not Only Makes The Image Brighter, It Also Makes The Magnet 10-15% Stronger.