Building set

KItty Light Up Crafting Kit Starlight Kitty & Cutie Crew‎ Cat Toy 4 in 1 8+ Gift

$25

Thames & Kosmos "Kids First Automobile Engineer" STEM Complete Building Set Tote

$26

NIB Thames & Kosmos Gravity Bugs Free-Climbing MicroBot/8+

$14

Motors and Generators Experiment Kit

$15

Thames & Kosmos Robotics Smart Machines Kit new /open box

$95 $160

Gecko Run marble run deluxe starter set

$35 $60

Thames & Kosmos Mega Cyborg Hand STEM Kit - Blue & Orange

$40

Thames and Kosmos Gecko Run marble run deluxe starter set plus add on set

$50 $120

Thames & Kosmos Gecko Run Marble Run Starter Set Vertical Track‎ Toy 671601

$20

Newton's Apple Tightrope-Walking Gyrobot STEM Kit - open box all parts present

$15

Thames & Kosmos Architectural Engineering Stem Kit Ages 8-14

$30 $50

Engineering Mavericks Geared-Up Gadgets Building Set - Red and Black color

$24 $30

NWT GYROBOT Experiment Kit by Thames & Kosmos

$35 $45

Gecko Run Marble Run Starter Set by GECKO RUN - Lime Green & Blue

$16 $40

TrainBots 2-in-1 Steam Maker Kit - Blue by Thames & Kosmos

$35

Thames & Kosmos Remote-Control Machines: Animals | 2x Incomplete Sets Bundle

$40

NWT Thames & Kosmos Mega Cyborg Hand STEM Kit Toy Kids Science New

$40

Thames & Kosmos Remote Control Machines Construction Kit 182 PCS 2015 New

$80