Name: Balance ball_x000D_Weight: About 300g 11.SWING BALL:Glowing Newton ball swing more dazzling at night, the base has a luminous plate, projected onto the glass beads, glass beads showing colorful, very attractive. It stays quietly by your side and swings and never stops its noble temperament, when you work hard, or when you are sleeping. 22.MATERIAL: Made of frosted glass + fishing line + plastic base. The product is made of 100% high?quality materials, has passed safety certification and quality inspection, is environmentally friendly, non?toxic, durable and Will not cause adverse effects on the human body, please rest assured to use. 33.SCIENTIFIC ATMOSPHERE:Not only demonstrates a pendulum, but also shows the Laws of Conservation of Momentum and Energy. When you are tired from work, stop and stare at its swing quietly, or even go in a daze, which will allow you to relax yourself extremely and give you a better spirit. When you have insomnia in the dark night, the luminous Newtons Swing Ball will take away your restlessness. You only need to look at it, can gradually calm down and fall asleep quickly. 44.GREAT DECORATIONWhen others approach your office or room, they will also be moved by its elegance. Wonderful decorations for your room and offfice to Improve temperament and noble. 55.BEST GIFT IDEA:A very meaningful gift to make your room or office more classy. When your good friends and family members receive such an exquisite gift, they will be satisfied to exclaim. The gift is suitable for any period, such as: anniversary, major holiday, graduation, birthday, Christmas, Halloween, Valentine's Day, etc. It will be a thoughtful and satisfying gift.1 * Swing BallDue to the different monitor and light effect,the actual color maybe a slight different from the picture color._x000D__x000D_Please allow 1-2cm differs due to manual measurement.