??<table width="550px" cellspacing="0" cellpadding="0" border="0" style="border-collapse:collapse"><tr style="height:20px"><td style="width:250px"><strong>Color</strong></td><td>Silver + Blue</td></tr><tr style="height:20px"><td style="width:250px"><strong>Model</strong></td><td>WH0001-1</td></tr><tr style="height:20px"><td style="width:250px"><strong>Material</strong></td><td>Metal</td></tr><tr style="height:20px"><td style="width:250px"><strong>Quantity</strong></td><td>1 Set</td></tr><tr style="height:20px"><td style="width:250px"><strong>Suitable Age </strong></td><td>8-11 Years、12-15 Years、Grownups</td></tr><tr style="height:20px"><td style="width:250px"><strong>Packing List</strong></td><td>5 x Holder<br/>1 x Motor<br/>1 x Gyroscope<br/>1 x Battery (18650)</td></tr></table><br />With accelerated electric motor、 12、000 revolutions per minute;<br /><br />High speed miniature ball bearings;<br /><br />Very high precision manufacture SOLID brass;<br /><br />Stainless steel shaft; Ideal for demonstrations at colleges and universities;<br /><br />Efficient motor allows hours of use; Can be used as executive&nbsp;toy.<br /><br /><br /><br />&nbsp;<br/><br />                                                                                                                                Dimensions: 2.56 in x 2.56 in x 2.56 in (6.5 cm x 6.5 cm x 6.5 cm)<br />Weight: 8.82 oz (250 g)<br /><br />