Interesting Scientific Experiment Technology Small-scale Manufacturing Handmade Material Seesaw Model

Perpect gift for childen to learn knowledge through this experiment, to enjoy DIY thus enhance their hand-making ability. Features: Kids can not only play with it bu also know some knowledge from it. Learn physics knowledge with fun. wooden material made with no toxic. It can be DIY the colour by hand, perceiving the color. To improve kid's ability of hand-making and parent-child interaction. Specification: Packing Size: 111*70*45mm/4.4*2.8*1.8in（Style 1） 120*120*45mm/4.7*4.7*1.8in（Style 2） 120*120*40mm/4.7*4.7*1.6in（Style 3） 130*90*58 mm/5.1*3.5*2.3in（Style 4） 250*91*63mm/9.8*3.6*2.5in（Style 5） Package Weight: 99.2g/3.5oz（Style 1） 60.2g/2.1oz（Style 2） 60.5g/2.1oz（Style 3） 58g/2.0oz（Style 4） 101.7g/3.6oz（Style 5） Packing List: 1 set of plate, several screws and nuts, 1 manual in Chinese, 2 convex lens, 1 paper(Style 1) 1 set of plate, 1 manual, 1 axle(Style 2) 1 set of plate, 1 manual, 5 axle, 1 cotton rope, several gaskets, 1 pulley(Style 3) 1 set of plate, 1 manual, 4 magnets, 4 round stickers(Style 4) 1 set of plate, 1 manual, 2 axle, several gaskets, 1 cotton rope, 2 plasti-c cups, 1 foam balls.(Style 5)

Kids can not only play with it bu also know some knowledge from it.Learn physics knowledge with fun.wooden material made with no toxic.It can be DIY the colour by hand, perceiving the color.To improve kid's ability of hand-making and parent-child interaction. Specification:Packing Size:111*70*45mm/4.4*2.8*1.8in（Style 1）120*120*45mm/4.7*4.7*1.8in（Style 2）120*120*40mm/4.7*4.7*1.6in（Style 3）130*90*58 mm/5.1*3.5*2.3in（Style 4）250*91*63mm/9.8*3.6*2.5in（Sty