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About This Product Name: Simple Pendulum Wave, also known as Snake Pendulum because the initial swing is like a snake Product configuration: natural bamboo base and acrylic stand w ith 12 colorful balls Product features: One exercise lasts about 5 minutes, and it can change different trajectories. It has a beautiful and interesting shape and can stimulate scientific interest and ignite curiosity Product functions: popular science education supplies，psychotherapy, stress relief, leisure and entertainment Product use: can be used as a desk or office desk ornament, or as a gift to children or friends Show more