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Product Name：Newton Bumper Ball Physics Ornament Material: plastic base and bracket + metal ball Style: simple modern Product size: 85*70*90mm (approx.) Scientific design leisure stress reduction Physics energy/momentum conservation law Durable and timeless, made of plastic High quality fishing line, stronger Solid steel ball, good drape and stronger force. Note 1. The actual colour may be slightly different from the picture 2. Due to manual measurement, the size may have 1-2 cm difference