STEM DIY Building Blocks 3in1 (hoist 72PCS) 72boxes/CASE

STEM DIY Building Blocks 3in1 (hoist 72PCS)   72boxes/CASE  .

Minimum order quantity in one case. The postage is 7 USD/KG, Box size：15x18x6

Elevate young engineers with this 3-in-1 STEAM pulley crane building set! Kids construct a towering crane with working winch & pulley, stable lifting platform, and movable arm using colorful interlocking bricks. Foster spatial skills, mechanical understanding, and hand-eye coordination. Ages 6+ – lift imagination to new heights!