Cubic Fun - 3D Puzzle - Hydraulic Robot Arm - HOL31092

The Cubic Fun HOL31092 Hydraulic Robot Arm is a hands-on STEM construction set that challenges builders to assemble a working mechanical arm powered by real hydraulic pressure. Rather than electronics or batteries, the arm operates through a system of syringes and tubing that use water pressure to drive movement — giving builders a direct, tactile introduction to hydraulic mechanics. Aimed at curious minds ready to move beyond static models, this kit rewards patience and problem-solving with a functional result you actually control.

Key Features

• Hydraulic actuation system uses water-filled syringes and tubing — no batteries or motors required
• Builders construct the arm from individual components, reinforcing understanding of mechanical assembly
• Demonstrates real engineering principles including hydraulic force transmission and lever mechanics
• Completed arm is poseable and functional, not just a display model
• Suitable for older children, teens, and adults interested in robotics, engineering, or STEM projects