Model Size: 3.5*2.4*2.7 in (9*6.2*6.8 cm)
Package size: 3.9*10.8*0.4 in (10*27.5*0.9 cm)
Made from wood materials
The models produce motion
Assembling without glue and chemicals
Details are already cut and ready to assemble
Perfect for family projects through hands-on STEM learning