DescriptionThis astronomical instrument diesigned as a swing, which is powered by four section five batteries (Not Include). when your hand gently touches it, this device will swing up and down to keep the swing. Can be used as science propaganda device, children gift, teaching instrument, desk ornament and etc.Features- Color: As shown - Material: Metal & Plastic. - Size: 10.8 x 10.8 x 19cm - Made of material, this astronomical instrument is durable and fine. - This balance swintoy is great to use in any home or office desktop or table as a decorative showpiece or as a piece of revolving art for your desk. - It is also great for those enthusiastic about science or to demonstrate the laws of physics in science classrooms. - Suitable for science propaganda, teaching using, or displaying.
