OVJ STEM Rubber Wheel, Axel & Base Set

This compact model kit features a small vehicle chassis built from a perforated metal strip, shaped into a sturdy rectangular frame. Measuring approximately 8.5 cm in length and 7 cm in width, the chassis is fitted with four black plastic wheels with a five-spoke design and rubber-like tread, offering smooth rolling and added grip.

Designed as an inertial car model, this kit relies on push momentum — once set in motion, the car continues to roll forward due to inertia. It’s a simple yet effective way to introduce students to basic physics concepts such as force, motion, and friction.

Ideal for classroom demonstrations, STEM activities, or creative prototyping projects, this chassis serves as a foundational component for hands-on learning and experimentation.