Johnco - Cybot: Hydraulic Cyborg Hand

by JohnCo

$57.95 ~~$67.95~~ /

🐨 100% Australian | Owned & Operated

⭐ 20,000+ Happy Customers | Trusted since 2016

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Transform their own hand into a powerful, water-driven machine that grips, lifts and waves with robotic precision.

💧 Hydraulic Power No batteries needed, just water pressure
⚙️ 203 Pieces A satisfying DIY engineering challenge
🖐️ Wearable Tech Adjustable design fits left or right hands

The Educator's Note

It demystifies engineering by showing exactly how fluid power translates into mechanical movement.
The 'wearable' aspect gives kids a huge incentive to persevere through the complex assembly process.
It's completely battery-free, proving that you don't need electronics to make something move.

Play Specifications

🧒 10 years +

Recommended for ages 10 years +

🧱 Builder

Construction & Engineering

🔬 Scientist

Curiosity & STEM

🔉 Quiet

Low volume

🏠 Indoor

Living Room / Playroom

👤 Independent Play

Solo / Self-Correcting

🤏 Fine Motor

Precision & Grip

🧠 Cognitive

Problem Solving & Logic

The Educator's Note

It demystifies engineering by showing exactly how fluid power translates into mechanical movement.
The 'wearable' aspect gives kids a huge incentive to persevere through the complex assembly process.
It's completely battery-free, proving that you don't need electronics to make something move.

Play Specifications

🧒 10 years +

🧱 Builder

🔬 Scientist

🔉 Quiet

🏠 Indoor

👤 Independent Play

🤏 Fine Motor

🧠 Cognitive

Imagine the look on their face when they slip their fingers into the loops and the robot hand instantly mimics their every move. There are no motors or batteries here—just the pure physics of water pressure driving the pistons. It's a wearable experiment that turns their own hand into a powerful mechanical claw capable of lifting bottles or gripping tiny screws. Designed for older kids aged 10+, this kit bridges the gap between building toys and real engineering. It requires patience and focus to assemble the 203 parts, making it a fantastic project for developing fine motor precision and following complex technical diagrams. Once built, it offers a tangible lesson in hydraulics that they can actually wear and use.

This kit is designed for children who have graduated from simple blocks and are ready for a technical challenge.

The Budding Engineer (10-14 years): Kids who want to know how things work and love seeing the inner mechanics of their toys.
The Patient Builder: Ideal for children who enjoy long-form projects like complex Building Sets or model kits.
The Sci-Fi Fan: Any child who dreams of being a cyborg or loves robot aesthetics will be motivated to finish the build.

Building The Machine

Open the box and you'll find frames of plastic parts, hydraulic tubes, and screws waiting to be transformed. This isn't a quick snap-together model; it's a serious construction project that will likely take a few hours to complete. They'll need to cut parts from the runners (we recommend using side cutters/nippers) and file down any rough edges to ensure smooth movement. It's the kind of deep-focus task that keeps them engaged on a rainy afternoon, building resilience as they troubleshoot and assemble the complex mechanisms.

How It Works

The magic happens when you add water. The system uses hydraulic cylinders to transmit power from the user's fingers to the robot claws. When they squeeze a finger, the water pressure forces the corresponding robot finger to contract. It's a brilliant, hands-on demonstration of Pascal's Principle and kinetic energy. Because the joints are adjustable, you can tune the hand to grip a clenched fist or open flat, allowing for precise control over what they pick up.

Wearable Engineering

Once the build is finished, the play begins. The hand stretches approximately 40cm in length and is fully adjustable to fit different hand sizes—from children to adults—and can be configured for either left or right-handed users. They can challenge themselves to pick up objects of different shapes and weights, from a soft ball to a plastic bottle. It turns the abstract concept of 'hydraulics' into a physical superpower they can control with their own fingertips. If they enjoy this, they might also like the Hydraulic Robot Arm for more fluid-powered fun.

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Johnco - Cybot: Hydraulic Cyborg Hand

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Why gift givers choose this

No Batteries Required Runs entirely on water and finger power, so it never runs out of juice.
Real STEM Learning Teaches the principles of hydraulic power and mechanical transmission without a textbook.
Adjustable Design Cleverly designed to fit both kids and adults, and converts for left or right-handed use.
High Engagement The reward for the long build is a highly interactive toy, not just a display piece.