THAMES & KOSMOS best sellers

#1 Mega Cyborg Hand STEM Thames & Kosmos Mega Cyborg Hand STEM Experiment Kit | Build Your Own GIANT Hydraulic Amazing Gripping Capabilities Adjustable for Different Sizes Learn Pneumatic Systems

$21.59 on Amazon

#2 Thames & Kosmos Mega Thames & Kosmos Mega Cyborg Hand Science Kit, Children Ages 7+

$17.59 on Walmart

#3 EXIT The Game Advent THAMES & KOSMOS EXIT: The Game - Advent Calendar - The Missing Hollywood Star | Christmas | Calendar | Advent | Mystery Game | Family Activity | Ages 10+

$39.99 on Amazon

#4 Gecko Run Marble Run Gecko Run Marble Run Starter Set by Thames & Kosmos, Toy of The Year Finalist - 63 Piece Vertical Marble Run, Flexible Tracks | Fast, No-Mess Setup, Residue-Free Nano-Adhesive Pads, Creative Play

$23.99 on Amazon

#5 Thames & Kosmos Lollipop Thames & Kosmos Lollipop Lab, Children Ages 8+

$13.99 on Walmart

#6 Thames & Kosmos I Dig Thames & Kosmos I Dig It! Dino - Egg Excavation Kit, Styles May Vary, Unisex, Children Ages 5+

$2 on Walmart

#7 Thames & Kosmos Candy Thames & Kosmos Candy Vending Machine, Super Stunts & Tricks, Stem & Science Set, Children Ages 8+

$19.96 on Walmart

#8 Thames & Kosmos Telescope Thames & Kosmos Telescope, Children Ages 8+

$34.97 on Walmart

#9 Gumball Machine Maker Thames & Kosmos Gumball Machine Maker Lab - Build Machines with Physics & Engineering Lessons | 12 Experiments | Make Your Own Gumball Machines | Includes Gumballs | Award Winner

$28.99 on Amazon

#10 Thames & Kosmos I Dig Thames & Kosmos I Dig It! Dragons - Egg Excavation Kit, Styles May Vary, Unisex, Children Ages 5+

$2.08 on Walmart

#11 Thames & Kosmos I Dig Thames & Kosmos I Dig It! Rocks & Fossils Egg Excavation Kit, Children Ages 5+

$2 on Walmart

#12 Gumball Machine Maker Thames & Kosmos Gumball Machine Maker Super Stunts and Tricks Science Stem Toy, Children 6-12+

$29.97 on Walmart

#13 Wow in The World SEA WONDERY KIDS Wow in The World SEA Creatures Aquarium | Hatch & Raise Real Brine Shrimp (Easy Care), Customizable Tank, Companion Audio Content, Bonus Reusable Science Tool, STEM Toy for Kids 6+ by Thames & Kosmos

$14.95 on Amazon

#14 Thames & Kosmos Gecko Thames & Kosmos Gecko Run: Marble Run Starter Kit: Includes Marble Run & Marbles, Children Ages 8+

$23.99 on Walmart

#15 Wow in The World Light UP WONDERY KIDS Wow in The World Light-UP Terrarium | Grow Plants, Decorate Your Terrarium, Glow-in-The-Dark, UV Lights, Companion Audio Content, Bonus Reusable Science Tool, STEM Toy for Kids 6+ by Thames & Kosmos

$29.95 on Amazon

#16 🔥 Gecko Run Marble Run Gecko Run Marble Run Deluxe Starter Set by Thames & Kosmos – Vertical Marble Run w/Flexible Tracks, Loop & Trampoline Tricks, Fast, No-Mess Setup, Residue-Free Nano-Adhesive Pads for Creative Play

$59.95 on Amazon

#17 Thames & Kosmos Ooze Thames & Kosmos Ooze Labs Chemistry Station Science Model Set, Children Ages 6+

$16.79 on Walmart

#18 Ooze Labs Chemistry Station Thames & Kosmos Ooze Labs Chemistry Station Science Experiment Kit, 20 Non-Hazardous Experiments Including Safe Slime, Chromatography, Acids, Bases & More, Multi-Color

$16.79 on Amazon

#19 Spy Labs Inc Fingerprinting Thames & Kosmos Spy Labs Inc: Fingerprinting Kit Identify, Collect, Analyze Fingerprint Evidence | Essential Tools and Tricks of The Trade from The Detective Gear Experts for Young Investigators

$6.95 on Amazon

#20 Gecko Run Marble Run Gecko Run Marble Run Snake Expansion Pack by Thames & Kosmos – Extra Zigzag Maze for Vertical Marble Run Starter Set; Fast, No-Mess Setup, Residue-Free Nano-Adhesive Pads for Hours of Creative Play

$14.95 on Amazon