Skip to main content

    • FREE SHIPPING on $50 Orders or More
    • Mega Cyborg Hand STEM Thames & Kosmos
    • Mega Cyborg Hand STEM Thames & Kosmos
    • Mega Cyborg Hand STEM Thames & Kosmos
    • Mega Cyborg Hand STEM Thames & Kosmos
    • Mega Cyborg Hand STEM Thames & Kosmos
    • Mega Cyborg Hand STEM Thames & Kosmos
    • Mega Cyborg Hand STEM Thames & Kosmos
    • Mega Cyborg Hand STEM Thames & Kosmos
    • Mega Cyborg Hand STEM Thames & Kosmos
    • Mega Cyborg Hand STEM Thames & Kosmos
    • Mega Cyborg Hand STEM Thames & Kosmos
    • Mega Cyborg Hand STEM Thames & Kosmos

    Mega Cyborg Hand

    • STEM
    • Engineering
    • Age 7+

    Build a giant hydraulic hand powered by water.

    $44.95

    Explore hydraulics, pneumatics, and robotics with your very own giant hydraulic hand! Using more than 200 pieces and water-filled piston tubes, build a mechanical hand that mimics human movement — no motors or electricity required. Slip it on like a glove and grip bottles, pencils, or anything within reach. Configure it as a left hand, right hand, or claw, adjustable to fit virtually any size.

    2021 The Toy Association's STEAM Toy of the Year
    TIME's Best Inventions of 2021
    2022 Purdue University’s Engineering Gift Guide

    WHY WE LOVE IT

    Learn Through Play
    • GIANT Hand

      Build a wearable hydraulic hand powered by water, no motors or electricity.
    • Hydraulic Technology

      200+ pieces make a wearable hand.
    • Build & Grip

      Configure it as a left hand, right hand, or claw.
    • #1 In The US!

      Top selling science toy in 2025 (US, Circana).

    Inside the manual

    Additional Info

    • Developed by educators and scientists
    • Step-by-step build instructions
    • Engaging illustrations throughout
    Download Manual

    What's in the Box

    Includes

    • 203 pieces
    • 52-page full-color instruction manual

    Helpful Videos


    Deeper Dive

    Explore hydraulics, pneumatics, and robotics with your very own GIANT hydraulic hand! Using over 200 plastic pieces and piston tubes that you fill with water, build an awesome mechanical hand that uses hydraulic power to simulate the movements of the human hand--no motors or electricity required!

    Once assembled, your cyborg hand slips onto your own hand like a glove, with mechanical fingers that you operate with your own fingers and that can grip objects with enough force to lift them. Challenge yourself to pick up and hold a variety of items like bottles, pencils, small items--anything with reach!

    The hand can be configured in three ways--left hand, right hand, and claw-like, with the thumb in the center--and can be adjusted to fit virtually all hand sizes.

    A 40-page, full-color manual guides model building and experimentation and provides engaging scientific information about how pneumatic and hydraulic systems are used in industrial robots to assist with a variety of tasks in our modern world.

    NGSS Correlations

    4-PS3-1 Energy
    3-5-ETS1-1 Engineering Design
    3-5-ETS1-2 Engineering Design
    K-2-ETS1-1 Engineering Design
    K-2-ETS1-2 Engineering Design

    Ages

    7+

    Experiments

    1

    Piece Count

    203

    Manual Pages

    52

    Product Dimensions

    10 x 13 x 4.7 in.

    Product Weight

    1.8 lbs

    Manual Dimensions

    8.25 X 11.5 in.

    Batteries Required

    N/A

    Country of Origin

    Taiwan

    Year Released

    2020

    Reviews

    Straight from real parents

    We envision a world where everyone loves to learn.

    Our products inspire kids and families to think deeper, play longer, and figure stuff out. 

    • Heritage Fuels Discovery

      Heritage Fuels Discovery

      With 200+ years of science publishing behind us, we've helped shape the STEM category worldwide. That heritage guides every product decision, from content development to quality standards.

    • Curiosity, Engineered

      Curiosity, Engineered

      We solve engineering problems most toy companies wouldn't attempt. GeckoBot climbs glass, Gecko Run builds marble runs on walls, and the Mega Cyborg Hand, a wearable hydraulic exoskeleton, was the #1-selling science toy in the US in 2025 (Circana).

    • Everyone's a Scientist

      Everyone's a Scientist

      We turn complex science and technology into fun, hands-on experiences for kids and families. From crystal growing to advanced robotics, we make the challenging feel approachable and the approachable feel exciting.