moondrop fidget desk toy - autbye moon drop decompression gravity defying new creative diy toys,displaying gravity on moon,earth and mars for work,class,children adult for reducing stress -3 sets autbye <b>product specifications</b><br> size: 2.68*0.7*1.06in/68*18*27mm(length*top diameter*bottom diameter)<br> weight: 0.11lb/48g/pcs<br> material: metal<br> product category: fidget toy<br> color: silver(moon edition), coppery(mars edition) and blue(earth edition)<br> ability training: intellectual development, active mind, interest culture, <br>parent-child communication, interactive toys, hand-eye coordination, vision training, etc.<br><br> <b>how moondrop works</b><br> let copper slide block move along the magnets.<br> -go through the magnetic fields;<br> -induce the current to flow in opposition to the magnetic fields;<br> -create resistance then slow down the sliding block.<br><br> <b>package included</b><br> 1 * moon edition moondrop with desk stand <br> 1 * mars edition moondrop with desk stand <br> 1 * earth edition moondrop with desk stand <br> 100% no-worried money back guarantee. <br><br> <b>note: </b>there is no direction or manual included in package. <br> because this toy is easy to play,just let slider ring free-falling or slide the slider ring along with its rod. <br>or spin it, roll it, slide it, click it and fidget around in any way possible.