Regular Magnets - Round, 15 mm, 100 PiecesRegular Magnets Round Pack of 100 round magnets. Ideal for magnetism and STEM activities. Magnets are strong, useful and also versatile. When students are ready for something more challenging they are able to use magnets to immerse themselves in the discovery of forces in our physical world, allowing them to test a hypothesis and draw conclusions increasing the complexity of lessons in magnetism with STEM and STEAM, electronics and more. The