Number of components: 43 Estimated time of assembly: 1 hour Level: Easy

Number of components: 776 Level: Advanced Electronic components:  Yes Model size: 6.3 x 4.8 x 5.9 in (16.1 x 12.1 x 15 cm) Package size: 14.7 x 6.7 x 2 in (37.3 x 17 x 5 cm) Estimated time of assembly: 8 hours

Number of components: 365 Estimated time of assembly: 9 hours Level: Medium

Model Size: 9.4 x 4.1 x 4.8 in Package size: 8.1 x 7.4 x 2.5 in Number of parts: 133 Level: Easy Assembly Time: 2 hours

Number of components: 500 Level: Advanced

Model size: 16.7*7.3*11.6 in (42.5*18.5*29.5cm) Package size: 14.9*6.7*2 in (37.8*17*5 cm) Number of components: 402 Estimated time of assembly: 9 hours Level: Advanced

Model Size Addiator: 8.5 x 4.3 x 0.91 in Model Size Multiplier: 9.8 x 10.0 x 1.6 in Package size: 8.1 x 7.4 x 2.5 in Number of parts: 117 Level: Easy Assembly Time: 2 hours Recommended Age: 8+

Number of components: 319 Level: Medium

Model size: 4.8 * 2.6*4.6 in (12.2 *6.5*11.7 cm) Package size: 3.6*8.3*0.6 in (9.2*21*1.5 cm) Number of Components: 73 Estimated Time of Assembly: 2 hours Level: Easy

Model size: 6.2 x 12.2 x 6.2 in (15.7 x 31 x 15.7 cm) Package size: 14.7 x 6.7 x 2 in (37.3 x 17 x 5 cm) Electronic components: Yes Number of components: 340 Estimated time of assembly: 6 hours

Model size: 11.2 x 11 x 4.7 in  Package size: 14.9 x 6.7 x 2 in Number of parts: 573 Level: Medium Assembly Time: 8 hours Recommended Age: 14+

Model size: 6.6*5*4.2 in (16.8*12.8*10.6 cm) Package size: 8.1*7.4*2.5 in (20.5*18.8*6.3 cm) Number of components: 104 Estimated time of assembly: 4 hours