These 7 reflective mirror balls constructed from stainless steel with graduated sizes from 5cm to 11cm. Each ball has a different content, so each ball produces different sound and motion effect. The hand-crafted glossy mirror surface provides a distorted fisheye lens reflection that is fascinating for children to observe. Balls Light, smooth and easy to handle, they can be particularly attractive to young scientists to explore why different materials can make different sounds and have different effects on movement.
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