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

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

mould king Mini V8 Engine Kits Physical Science - 487 pieces

Bluejw Solar Robot Kit Robotics - 8 years+ 12 pieces

CYOEST FM Radio Kit Radio Electronics - 8-12 years

RCmall Transmission Gearbox Model Kit Engineering - 14 years and up

Thames & Kosmos Kids First: Robot Factory STEM - 5 - 15 years 117 pieces

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

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

Suplanet Electric V8 Engine Kit Engineering Skills - 14 years+ 3168 pieces

mould king 10087 L4 - Engineer - 8 years+