STEM DIY Building Blocks 3in1 (robot arm 50PCS) 72boxes/CASE

STEM DIY Building Blocks 3in1 (robot arm 50PCS)   72boxes/CASE  .

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

Ignite engineering excitement with this 3-in-1 STEAM construction toy! Kids build a powerful tracked excavator with spinning gears, a towering pulley crane with movable arm, and a spinning-rotor helicopter using vibrant interlocking bricks. Foster creativity, mechanics understanding, fine motor skills, and problem-solving. Ages 6+ – dig, lift, fly!