This item is used as a decorative ornament for home and office or a gift for friends or someone you love. The unique exclusive contemporary design makes it attactive and eye-catching. It can be applicable to desk and household decoration and also can be as a birthday gift. Features - Color: Black. - Material: ABS, glass and stainless steel. - Size: About 12x8.8x12cm. - Used as a decorative ornament for home and office or a gift for friends or someone you love. - The unique exclusive contemporary design makes it attactive and eye-catching. - It can be applicable to desk and household decoration and also can be as a birthday gift. - Turn on the switch to light up the decoration. - Not only demonstrates a pendulum, but also shows the laws of conservation of momentum and energy.