Pro’sKit GE-730 3-in-1 Spiral Spring Science Kit – Battery-Free STEM Robot, Race Car & Timer DIY Build Set for Kids 8+

Let young inventors discover real mechanical physics through hands-on play with the Pro’sKit 3-in-1 Spiral Spring Science Kit GE-730. This exciting battery-free STEM engineering kit allows kids to build three spring-powered creations: a motorized-style walking robot, a fast spiral spring race car, and a countdown clock timer — all driven only by kinetic spring force.

Instead of using motors or batteries, children wind the spring to store energy, then release it to power motion. This teaches core STEM concepts like energy storage, kinetic force, gear transfer, and mechanical movement in a super fun, build-it-yourself way.

With 133 pieces and clear step-by-step instructions (bilingual English/French manual), kids gain confidence building from scratch while improving focus, creativity, and problem-solving skills.

Performance adds extra wow:

• Race car drives up to 45 feet

• Robot walks up to 20 inches

• Timer counts down up to 6 minutes

Made with sturdy, safe materials and designed for ages 8+, the GE-730 is perfect for home learning, classrooms, science projects, and smart educational gifts.

⭐ Highlights

• 3 builds in 1 kit: Robot + Car + Timer

• Spring powered — no batteries ever needed

• Teaches real physics & mechanical engineering

• Bilingual guide supports easy learning

• Great for STEM projects & skill building

📌 Quick Specs