•Enjoy science experiment play with principle of magnet! Each Magnet Play Set includes 1 bar magnet (5 x 1.5 x 0.3cm), 1 horseshoe magnet (3.5 x 4 x 0.5cm), 2 ring magnets (2.1cm outer diameter, 1cm hole diameter, 0.3cm thickness), 2 oval shape magnets (2.8cm long, 0.8cm center diameter) and 1 small spool of white thread. •Suitable for kids to perform fun magnet games and experiments. Kids can learn the basic magnetic principles and investigate the Physics and magnetism by doing experiment with these magnets kit set. •This magnet kit can enhance learning and consolidation of theory, for kids to explore in advance and get interested in Physics science. Each set box size: 11cm x 1cm x 13.7cm. 20-Set bulk pack box size: 27.5cm x 22cm x 6cm height. Keep product at a cool, dry place away from direct sunlight China