ORIGINAL SELL AT *[$45.99]*, NOW WE SELL ONLY *[$21.99] FAR BELOW THE COST* TO ENCOURAGE YOUR TRIAL ORDER. IT?S NOT A BIG DEAL, IT?S WORTHY FOR YOU TRY. DON?T WORRY,WE STAND BESIDE THE PRODUCT. FEATURES: Sizes: 62 * 88 mm / 2.44 * 3.46 in. Net weight: 85 g / 0.19 lb Border color: blue Center wheel material: metal Packing: iron box. PACKAGE CONTENT: 1*gyroscope 1*string 1*base WARNING: Choking hazard small parts, not for Children under 13 years A BALANCE TOY: Give your child the wonder of a toy you played with when you were little! Even the packaging on this gyroscope will make you think of your childhood. Produced since 1917, the gyroscope has been a classic educational toy for generations. It continues to fascinate young and old alike with its mysterious force that seems to defy gravity. An excellent tool to teach gyroscopic inertia, the gyroscope will provide hours of creative play. Gyroscope technology is used in numerous applications of everyday life such as guidance and navigation systems in ships, planes and spacecrafts; in accurate mapping and survey work; in oil drilling and even motion picture making. Whether your kid is a science whiz or simply curious about the physical world, this variety pack-this Gyroscope can lead to hours of fascinating discoveries. The gyroscope is a precision instrument that spins like a top on a tiny pivot, seeming to defy gravity just to keep its position in space. An easy-to-read product insert explains how to make the gadget spin on a tabletop, on the edge of a cup, or even on a tautly pulled string. Your gyroscope will spin merrily on its pedestal, dance on a string tightrope, balance perfectly on the lip of a drinking glass, turn its cube box into a whirling dervish. cube box into a whirling dervish.