<div class="detailmodule_html"><div class="detail-desc-decorate-richtext"><p><span style="font-size:18px">You can do optical experiments by this set of Optical equipment and you can adjust different light with your kids! Have fun!</span></p><p><span style="font-size:18px">Operates with 2x1.5V, AAA batteries(not included in the package).</span></p><div><br/></div><p><span style="font-size:18px">Box Size: 23cmx16cm</span></p><p><span style="font-size:18px">Quantity: 1 Set</span></p><p><span style="font-size:18px">Note:</span></p><p><span style="font-size:18px">Please allow 1-3mm error due to manual measurement. pls make sure you do not mind before you bid</span></p><p><span style="font-size:18px">Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!</span></p><div><br/></div><p><span style="font-size:18px">Package Contents:</span></p><p><span style="font-size:18px">1 x Laser Beam generator</span></p><p><span style="font-size:18px">1 x Triangular prism</span></p><p><span style="font-size:18px">1 x convex lens</span></p><p><span style="font-size:18px">1 x biconvex lens</span></p><p><span style="font-size:18px">2 x square lens(different size)</span></p><p><span style="font-size:18px">1 x spherical lens</span></p><p><span style="font-size:18px">2 x mirrors</span></p><p><span style="font-size:18px">1 x magnifier</span></p><p><span style="font-size:18px">1 x water channel</span></p><p><span style="font-size:18px">3 x chess</span></p><p><span style="font-size:18px">1 x instructions</span></p><div><br/></div><p><span style="font-size:18px">AAAx2 needed (NOT INCLUDED)</span></p><p></p><div><br/></div></div></div><br/>