mould king L4 Gasoline Engine Building Blocks Kit Engineering - 14 years+ 1787 pieces

mould king W16 Engine Kit Physical Science - 14 years+ 952 pieces

mould king V8 Engine Model Kit Engineer - 14 years+ 535 pieces

mould king Mini V8 Engine Kits Physical Science - 487 pieces

Bluejw Solar Robot Kit Robotics - 8 years+ 12 pieces

Geomag Magnetic Building Set Magnetism, Engineering - 3 years+ 30 pieces

CYOEST FM Radio Kit Radio Electronics - 8-12 years

MZA STORES 60+ Science Experiment Kit - 5-8 years 60+ pieces

RCmall Transmission Gearbox Model Kit Engineering - 14 years and up

Yusat Wooden Elevator Door Building Kit Geometry - 14 years+

Bluejw 6-in-1 STEM Solar Robot Kit Engineering - 8 years+