Model size: 36 x 4.9 x 39 in Package size: 14.9 x 6.7 x 2 in Number of parts: 504 Level:  Advanced Assembly Time: 7 hours Recommended Age: 14+

Number of components: 172 Estimated time of assembly: 3 hours Level: Easy

Number of components: 305 Estimated time of assembly: 8 hours Level: Medium

Model size: 11.8*5.7*7.3 in (30*14.5*18.5 cm) Package size: 14.7*6.7*2 in (37.3*17*5 cm) Number of components: 562 Estimated time of assembly: 8 hours 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

Number of components: 170 Estimated time of assembly: 3 hours Level: Easy

Model size: 8.9 x 3.1 x 3.3 in  Package size: 14.9 x 6.7 x 1.1 in Number of parts: 246 Level: Medium Assembly Time: 6 hours Recommended Age: 14+ Kit weight: 1.48 lbs Manufacturer: UGears

Number of components: 200 Estimated time of assembly: 3 hours Level: Easy

Number of components: 265 Estimated time of assembly: 5 hours Level: Medium

Model size: 7.7 x 2.6 x 5.9 in  Package size: 14.9 x 6.7 x 1.1 in Number of parts: 268 Level: Medium Assembly Time: 6 hours Recommended Age: 14+ Kit weight: 1.59 lbs Manufacturer: UGears

Number of components: 383 Estimated time of assembly: 6 hours Level: Medium

Number of components: 460 Estimated time of assembly: 8 hours Level: Advanced