Material: Made of stainless steel, safe and smooth to the touch. Educational toys: The character design is cute, simple and stylish, which can easily attract children's attention. Help improve children's learning as an educational toy to improve children's learning of perpetual motion machines. Unique design: Small weight lifter on the base, creative design, just press it lightly and Iron Man will swing. Places smoothly on the table and does not take up space. Magic Fun: A good helper to relieve stress when you are bored. Desktop entertainment to entertain office colleagues. This is a classic desk accessory with an artistic flair. This cool desk toy makes a great icebreaker when you place it on your office desk or home desk. Use it to kill time, relieve stress, get away from boring co-workers, or teach the kids physics lessons. PERFECT GIFT: At this price, this is an amazing and fantastic product that would make a great gift for family or friends. Classic and funny toys that make you feel the charm of science. Suitable for collections, business gifts, birthday gifts, home office desk car accessories decorative ornaments, and stress-reducing finger balance toys and gifts. It can also be used for teaching purposes. Many of our clients are from schools, colleagues, etc. Easy to install and uninstall