Mechanical Group Assembled Bow Machine Set

Features:
*Learn how mechanical emission by building mechanical group assembled bow machine set. 
*Kids learn additional information about the models they're building and their uses in real life.It is conductive to learn STEAM education and improve childrens' comprehensive actity. 
*The assembly of mechanical structure creates children's imagination and enhance communication with parents. 
*Principle of dynamic design： Provide sufficient bounce for launch of the plastic dart. 
*More than 200 snap together pieces. 
*Perfect gift to family and friends who loves machine set.  

Specification:
Product model:406-6533; 
Material: ABS; 
Weight:600g/21.16oz; 
Product size: 6.5*22.6*25.2cm/2.55*8.89*9.92in; 
Product weight:800/28.21oz;  

Package list:
1*Mechanical Group Assembled Bow Machine Set