The hydraulic robotic arm is an ideal kit for curious kids and adults who want to explore the principles of hydraulics, mechanics, and energy transfer using water. Without the need for batteries or glue, you can build a fully functional model that demonstrates how fluid pressure can drive motion.

The model offers two easy-to-control modes: precise gripping and lifting of light objects with a jaw span up to 70 mm, and a fun ring-shooting mode with a magazine for smooth experiments. Its ambidextrous design suits both right- and left-handed users.

Why choose this kit:

• Hands-on STEM learning: develop mechanical thinking, hand–eye coordination, and understanding of pressure and hydraulic principles.
• No electricity or glue: safe, eco-friendly, and reusable.
• A rewarding challenge: 2–3 hours build time, difficulty 4/5 for a satisfying creative experience.