☆彡☆彡【Recommended】☆彡☆彡 ✿ Newton's Cradle. A pendulum item for your desk. ✿ Can be used as a science experiment item, or as a desk item to restore concentration and relieve stress. ✿ The size of the Newton's Cradle is 7*9.5*9.5cm (length*width*height). It weighs 90g, making it a convenient size to carry around. ✿ It can be the first item for 0-2 year olds to encounter science. ✿ Working adults can also adopt it as an item to relieve stress on a drab desk. ☆彡☆彡【Product Name】☆彡☆彡 Newton's Cradle 7cm Size Portable Easy Pendulum Balance Ball Concentration Recovery Relaxation Science Experiment Item ☆彡☆彡【Product Information】☆彡☆彡 ✿【Functions】 Concentration Recovery Relaxation Stress Relief Educational Toy Science Experiment Desk Item ✿【Size】 Length*Width*Height cm 7*9.5*9.5cm ✿【Weight】 90g ✿【Materials】 Plastic Steel ✿【Ease of Use】 Anyone can use it immediately. There is no difficulty. ☆彡☆彡【Notes on Purchase】☆彡☆彡 ★ All products listed this time have been inspected. ★ We package the products with OPP bags, air cushions, etc. to prevent damage during shipping. ★ In the unlikely event that a product is damaged during shipping, we will provide a refund or return. ★ The procedure for refunds and returns will follow our regulations. ★ Delivery may be significantly delayed in the event of special circumstances such as typhoons or earthquakes.